What is the Greatest Common Factor of 74636 and 74640?

Greatest common factor (GCF) of 74636 and 74640 is 4.

GCF(74636,74640) = 4

We will now calculate the prime factors of 74636 and 74640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 74636 and 74640.

How to find the GCF of 74636 and 74640?

We will first find the prime factorization of 74636 and 74640. After we will calculate the factors of 74636 and 74640 and find the biggest common factor number .

Step-1: Prime Factorization of 74636

Prime factors of 74636 are 2, 47, 397. Prime factorization of 74636 in exponential form is:

74636 = 2² × 47¹ × 397¹

Step-2: Prime Factorization of 74640

Prime factors of 74640 are 2, 3, 5, 311. Prime factorization of 74640 in exponential form is:

74640 = 2⁴ × 3¹ × 5¹ × 311¹

Step-3: Factors of 74636

List of positive integer factors of 74636 that divides 74636 without a remainder.

1, 2, 4, 47, 94, 188, 397, 794, 1588, 18659, 37318

Step-4: Factors of 74640

List of positive integer factors of 74640 that divides 74636 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 311, 622, 933, 1244, 1555, 1866, 2488, 3110, 3732, 4665, 4976, 6220, 7464, 9330, 12440, 14928, 18660, 24880, 37320

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 74636 and 74640. The biggest common factor number is the GCF number.
So the greatest common factor 74636 and 74640 is 4.

Also check out the Least Common Multiple of 74636 and 74640