What is the Greatest Common Factor of 25720 and 25725?

Greatest common factor (GCF) of 25720 and 25725 is 5.

GCF(25720,25725) = 5

We will now calculate the prime factors of 25720 and 25725, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25720 and 25725.

How to find the GCF of 25720 and 25725?

We will first find the prime factorization of 25720 and 25725. After we will calculate the factors of 25720 and 25725 and find the biggest common factor number .

Step-1: Prime Factorization of 25720

Prime factors of 25720 are 2, 5, 643. Prime factorization of 25720 in exponential form is:

25720 = 2³ × 5¹ × 643¹

Step-2: Prime Factorization of 25725

Prime factors of 25725 are 3, 5, 7. Prime factorization of 25725 in exponential form is:

25725 = 3¹ × 5² × 7³

Step-3: Factors of 25720

List of positive integer factors of 25720 that divides 25720 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 12860

Step-4: Factors of 25725

List of positive integer factors of 25725 that divides 25720 without a remainder.

1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 343, 525, 735, 1029, 1225, 1715, 3675, 5145, 8575

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25720 and 25725. The biggest common factor number is the GCF number.
So the greatest common factor 25720 and 25725 is 5.

Also check out the Least Common Multiple of 25720 and 25725