diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
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diff --git a/BUILD b/BUILD
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+++ b/BUILD
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+module(
+  name = "cpp-analytics-devops",
+  version = "1.0.0",
+)
+
+bazel_dep(name = "googletest", version = "1.17.0")
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
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diff --git a/MODULE.bazel b/MODULE.bazel
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diff --git a/docker-compose.yaml b/docker-compose.yaml
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diff --git a/docker/.dockerignore b/docker/.dockerignore
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diff --git a/docker/Dockerfile b/docker/Dockerfile
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diff --git a/docs/api.md b/docs/api.md
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diff --git a/docs/architecture.md b/docs/architecture.md
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diff --git a/k8s/configmap.yaml b/k8s/configmap.yaml
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diff --git a/k8s/deployment.yaml b/k8s/deployment.yaml
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diff --git a/k8s/hpa.yaml b/k8s/hpa.yaml
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diff --git a/k8s/ingress.yaml b/k8s/ingress.yaml
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diff --git a/k8s/secret.yaml b/k8s/secret.yaml
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diff --git a/k8s/service.yaml b/k8s/service.yaml
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diff --git a/src/BUILD b/src/BUILD
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+++ b/src/BUILD
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+cc_library(
+  name = "factorLib",
+  srcs = [
+    "factor.cpp"
+  ],
+  hdrs = [
+    "factor.h"
+  ],
+)
+
+cc_binary(
+  name = "mainProg",
+  srcs = [
+    "main.cpp",
+    "main.h",
+  ],
+  deps = [
+    ":factorLib",
+  ], 
+)
\ No newline at end of file
diff --git a/src/api/BUILD b/src/api/BUILD
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diff --git a/src/api/rest.cpp b/src/api/rest.cpp
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diff --git a/src/api/rest.h b/src/api/rest.h
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diff --git a/src/api/utils.cpp b/src/api/utils.cpp
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diff --git a/src/api/utils.h b/src/api/utils.h
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diff --git a/src/factor.cpp b/src/factor.cpp
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index 0000000..e3db641
--- /dev/null
+++ b/src/factor.cpp
@@ -0,0 +1,190 @@
+#include "factor.h"
+
+using namespace std;
+
+// === member functions for Factorization ===
+/// @brief constructor
+/// @param n the value for fatorization
+Factorization::Factorization(int64_t n) : n(n)
+{
+  srand(time(0));
+}
+
+vector<int64_t> Factorization::getAllFactors()
+{
+  vector<int64_t> output = {};
+  int64_t tmp = n;
+  while(tmp != 1)
+  {
+    auto factor = getFactor(tmp);
+    output.emplace_back(factor);
+    tmp = tmp / factor;
+  }
+  return output;
+}
+
+/// @brief the main function to do the calculation
+/// @return result
+int64_t Factorization::getFactor(const int64_t& input)
+{
+  int64_t d = 1;
+  int64_t cnt = 0;
+  int64_t x = selectX0(input);
+  int64_t y = x;
+
+  // trivial cases
+  if (input == 1 || input == 2 || input == 3)
+    return input;
+  else if (input%2 == 0)
+  {
+    return 2;
+  }
+  // check prime numbers
+  else if (millerRabin(input))
+  {
+    return input;
+  }   
+
+  // must have a factor
+  while(d == 1 || d == input)
+  {
+    d = pollardsPho(x, y, input);
+    if (d == input)
+    {
+      failure++;
+    }
+    // basicLogging(x, y, d, cnt);
+    cnt++;
+  }
+
+  if (!millerRabin(d))
+  {
+    d = getFactor(d);
+  }
+
+  return d;
+}
+
+/// @brief basic iteration of the algorithm
+/// @param x x
+/// @param y y
+/// @return d
+int64_t Factorization::pollardsPho(int64_t &x, int64_t &y, const int64_t& input)
+{
+  selectC(c);
+  x = squareMod(x, c, input);
+  y = squareMod(squareMod(y, c, input), c, input);
+  return calculateD(x, y, input);
+}
+
+/// @brief  select the initial x
+/// @return x
+int64_t Factorization::selectX0(const int64_t& input)
+{
+  
+  int64_t output = (rand() % (input - 2)) + 2;
+  return output;
+}
+
+/// @brief function to calculate f(x) = x^2 + c
+/// @param x x
+/// @param c c
+/// @return f(x)
+int64_t Factorization::squareMod(const int64_t& x, const int64_t& c, const int64_t& input)
+{
+  __int128_t output = (x * x + c) % input;
+  return output;
+}
+
+/// @brief funtion to calculate D = gcd(abs(x-y), n)
+int64_t Factorization::calculateD(const int64_t& x, const int64_t& y, const int64_t& input)
+{
+  return gcd(abs(x-y), input);
+}
+
+/// @brief function to select c
+/// @return c
+void Factorization::selectC(int64_t& input)
+{
+  if (failure < 100)
+    input = 1;
+  else if (failure < 200)
+    input = 2;
+  else if (failure < 300)
+    input = 3;
+  // choose from [4, n)
+  else
+    input = (rand() % (n - 4)) + 4;
+}
+
+/// @brief  provides a basic logging showing info for x, y, d, cnt
+/// @param x x
+/// @param y y
+/// @param d d
+/// @param cnt cnt
+void Factorization::basicLogging(const int64_t &x, const int64_t &y, const int64_t &d, const int64_t &cnt)
+{
+  cout << cnt << ":" << endl;
+  cout << "x, y, d: " << x << "," << y << "," << d << endl;
+}
+
+/// @brief function to check prime (in the cases of none 1, 2, 3 or even)
+/// @return bool result
+bool Factorization::millerRabin(const int64_t& input)
+{
+  int64_t d = input - 1;
+  int64_t s = 0;
+  while(d % 2 == 0)
+  {
+    d /= 2;
+    s++;
+  }
+
+  // enough for 64 bit int
+  vector<int64_t> bases = {2,3,5,7,11,13,17};
+  for(const auto& base : bases)
+  {
+    if (base >= input)
+      continue;
+
+    // calculate x = a^d % n
+    __int128_t x = mod_pow(base, d, input);
+
+    if (x == 1 || x == input - 1)
+      continue;
+    
+    bool passed = false;
+    for(int64_t i = 1; i < s; i++)
+    {
+      x = x * x % input;
+      if (x == input - 1)
+      {
+        passed = true;
+        break;
+      }
+    }
+    if (!passed)
+      return false;
+  }
+  return true;
+}
+
+/// @brief internal function to calculate mod power
+/// @param b b
+/// @param d d
+/// @return mod power result
+int64_t Factorization::mod_pow(const int64_t& b, const int64_t& d, const int64_t& input)
+{
+  __int128_t result = 1;
+  int64_t base = b;
+  int64_t dd = d;
+  base = base % input;
+  while(dd > 0)
+  {
+    if (dd % 2 == 1)
+      result = (result * base) % input;
+    base = base * base % input;
+    dd /= 2;
+  }
+  return result;
+}
\ No newline at end of file
diff --git a/src/factor.h b/src/factor.h
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index 0000000..d1a1497
--- /dev/null
+++ b/src/factor.h
@@ -0,0 +1,36 @@
+#ifndef FACTOR_H
+#define FACTOR_H
+
+#include <vector>
+#include <iostream>
+#include <cstdint>
+#include <ctime>
+#include <cmath>
+#include <cstdlib>
+#include <numeric>
+
+using namespace std;
+
+class Factorization
+{
+public:
+  Factorization(int64_t n);
+  ~Factorization() = default;
+  vector<int64_t> getAllFactors();
+  int64_t getFactor(const int64_t& input);
+
+private:
+  int64_t n;
+  int64_t c;
+  int64_t failure = 0;
+  int64_t squareMod(const int64_t& x, const int64_t& c, const int64_t& input);
+  int64_t calculateD(const int64_t& x, const int64_t& y, const int64_t& input);
+  void selectC(int64_t& input);
+  int64_t selectX0(const int64_t& input);
+  int64_t pollardsPho(int64_t &x, int64_t &y, const int64_t& input);
+  bool millerRabin(const int64_t& input);
+  int64_t mod_pow(const int64_t& b, const int64_t& d, const int64_t& input);
+  void basicLogging(const int64_t &x, const int64_t &y, const int64_t &d, const int64_t &cnt);
+};
+
+#endif
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
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--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,28 @@
+#include "main.h"
+
+using namespace std;
+
+int main(int argc, char** argv)
+{
+  string input = "";
+  if (argc > 1)
+    input = argv[1];
+  else
+  {
+    throw invalid_argument("No argument is passed!");
+  }
+    
+  // might throw std::invalid_argument or std::out_of_range in case not able to parse
+  int64_t n = stoll(input);
+
+  auto factorization = Factorization(n);
+
+  cout << "Factors of " << n << " are: " << endl;
+  auto results = factorization.getAllFactors();
+
+  for(const auto& result : results)
+  {
+    cout << result << ",";
+  }
+  cout << endl;
+}
\ No newline at end of file
diff --git a/src/main.h b/src/main.h
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index 0000000..8f38a45
--- /dev/null
+++ b/src/main.h
@@ -0,0 +1,8 @@
+#ifndef MAIN_H
+#define MAIN_H
+
+#include <iostream>
+#include <stdexcept>
+#include "factor.h"
+
+#endif
\ No newline at end of file
diff --git a/src/montecarlo.cpp b/src/montecarlo.cpp
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diff --git a/src/montecarlo.h b/src/montecarlo.h
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diff --git a/tests/BUILD b/tests/BUILD
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diff --git a/tests/api_test.cpp b/tests/api_test.cpp
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diff --git a/tests/factor_test.cpp b/tests/factor_test.cpp
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diff --git a/tests/montecarlo_test.cpp b/tests/montecarlo_test.cpp
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