Added 3byte prime numbers

code-files/calculate-primes.py

@@ -0,0 +1,63 @@
+import numpy as np
+import time
+import os
+
+def clear_terminal():
+    """Clear the terminal screen."""
+    os.system('cls' if os.name == 'nt' else 'clear')
+
+def sieve_of_eratosthenes(limit):
+    """Sieve of Eratosthenes to find all primes up to 'limit'."""
+    sieve = np.ones(limit // 3 + (limit % 6 == 2), dtype=bool)
+    sieve[0] = sieve[1] = False  # 0 and 1 are not prime
+
+    # Iterate only for numbers that are prime
+    for i in range(1, int(limit**0.5) // 3 + 1):
+        if sieve[i]:
+            prime = 3 * i + 1
+            sieve[3 * i + prime::prime * 3] = False
+
+    primes = [2, 3]
+    for i in range(1, len(sieve)):
+        if sieve[i]:
+            primes.append(3 * i + 1)
+    return primes
+
+def write_prime_to_file(prime, filename):
+    """Write the hexadecimal and decimal representation of a prime number to the file."""
+    hex_prime = f"{prime:08X}"  # Convert to hex with leading zeros (8 digits)
+    with open(filename, 'a') as f:  # Open in append mode
+        f.write(f"{hex_prime} {prime}\n")
+
+def main():
+    limit = 4294967295
+    filename = 'primes.txt'
+
+    # Start the sieve calculation and time it
+    start_time = time.time()
+    total_primes = 0
+
+    for prime in sieve_of_eratosthenes(limit):
+        total_primes += 1
+        write_prime_to_file(prime, filename)
+
+        # Clear the terminal and update information
+        clear_terminal()
+
+        elapsed_time = time.time() - start_time
+        estimated_time_left = (elapsed_time / total_primes) * (len(primes) - total_primes) if total_primes > 0 else 0
+
+        # Print the last prime, elapsed time, estimated time left, and total primes found
+        print(f"Last Prime Found: {prime}")
+        print(f"Total Primes Found: {total_primes}")
+        print(f"Elapsed Time: {elapsed_time:.2f} seconds")
+        print(f"Estimated Time Left: {estimated_time_left:.2f} seconds")
+
+    # Print final completion message
+    print(f"Finished calculating primes up to {limit}.")
+    print(f"Total Primes Found: {total_primes}")
+    print(f"Total Elapsed Time: {elapsed_time:.2f} seconds")
+
+if __name__ == "__main__":
+    main()
+