What is the Greatest Common Factor of 65620 and 65625?

Greatest common factor (GCF) of 65620 and 65625 is 5.

GCF(65620,65625) = 5

We will now calculate the prime factors of 65620 and 65625, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65620 and 65625.

How to find the GCF of 65620 and 65625?

We will first find the prime factorization of 65620 and 65625. After we will calculate the factors of 65620 and 65625 and find the biggest common factor number .

Step-1: Prime Factorization of 65620

Prime factors of 65620 are 2, 5, 17, 193. Prime factorization of 65620 in exponential form is:

65620 = 2² × 5¹ × 17¹ × 193¹

Step-2: Prime Factorization of 65625

Prime factors of 65625 are 3, 5, 7. Prime factorization of 65625 in exponential form is:

65625 = 3¹ × 5⁵ × 7¹

Step-3: Factors of 65620

List of positive integer factors of 65620 that divides 65620 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 193, 340, 386, 772, 965, 1930, 3281, 3860, 6562, 13124, 16405, 32810

Step-4: Factors of 65625

List of positive integer factors of 65625 that divides 65620 without a remainder.

1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 625, 875, 1875, 2625, 3125, 4375, 9375, 13125, 21875

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65620 and 65625. The biggest common factor number is the GCF number.
So the greatest common factor 65620 and 65625 is 5.

Also check out the Least Common Multiple of 65620 and 65625