What is the Greatest Common Factor of 39680 and 39700?

Greatest common factor (GCF) of 39680 and 39700 is 20.

GCF(39680,39700) = 20

We will now calculate the prime factors of 39680 and 39700, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39680 and 39700.

How to find the GCF of 39680 and 39700?

We will first find the prime factorization of 39680 and 39700. After we will calculate the factors of 39680 and 39700 and find the biggest common factor number .

Step-1: Prime Factorization of 39680

Prime factors of 39680 are 2, 5, 31. Prime factorization of 39680 in exponential form is:

39680 = 2⁸ × 5¹ × 31¹

Step-2: Prime Factorization of 39700

Prime factors of 39700 are 2, 5, 397. Prime factorization of 39700 in exponential form is:

39700 = 2² × 5² × 397¹

Step-3: Factors of 39680

List of positive integer factors of 39680 that divides 39680 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840

Step-4: Factors of 39700

List of positive integer factors of 39700 that divides 39680 without a remainder.

1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 794, 1588, 1985, 3970, 7940, 9925, 19850

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39680 and 39700. The biggest common factor number is the GCF number.
So the greatest common factor 39680 and 39700 is 20.

Also check out the Least Common Multiple of 39680 and 39700