What is the Greatest Common Factor of 25856 and 25860?

Greatest common factor (GCF) of 25856 and 25860 is 4.

GCF(25856,25860) = 4

We will now calculate the prime factors of 25856 and 25860, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25856 and 25860.

How to find the GCF of 25856 and 25860?

We will first find the prime factorization of 25856 and 25860. After we will calculate the factors of 25856 and 25860 and find the biggest common factor number .

Step-1: Prime Factorization of 25856

Prime factors of 25856 are 2, 101. Prime factorization of 25856 in exponential form is:

25856 = 2⁸ × 101¹

Step-2: Prime Factorization of 25860

Prime factors of 25860 are 2, 3, 5, 431. Prime factorization of 25860 in exponential form is:

25860 = 2² × 3¹ × 5¹ × 431¹

Step-3: Factors of 25856

List of positive integer factors of 25856 that divides 25856 without a remainder.

1, 2, 4, 8, 16, 32, 64, 101, 128, 202, 256, 404, 808, 1616, 3232, 6464, 12928

Step-4: Factors of 25860

List of positive integer factors of 25860 that divides 25856 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1293, 1724, 2155, 2586, 4310, 5172, 6465, 8620, 12930

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25856 and 25860. The biggest common factor number is the GCF number.
So the greatest common factor 25856 and 25860 is 4.

Also check out the Least Common Multiple of 25856 and 25860