What is the Greatest Common Factor of 25836 and 25840?

Greatest common factor (GCF) of 25836 and 25840 is 4.

GCF(25836,25840) = 4

We will now calculate the prime factors of 25836 and 25840, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25836 and 25840.

How to find the GCF of 25836 and 25840?

We will first find the prime factorization of 25836 and 25840. After we will calculate the factors of 25836 and 25840 and find the biggest common factor number .

Step-1: Prime Factorization of 25836

Prime factors of 25836 are 2, 3, 2153. Prime factorization of 25836 in exponential form is:

25836 = 2² × 3¹ × 2153¹

Step-2: Prime Factorization of 25840

Prime factors of 25840 are 2, 5, 17, 19. Prime factorization of 25840 in exponential form is:

25840 = 2⁴ × 5¹ × 17¹ × 19¹

Step-3: Factors of 25836

List of positive integer factors of 25836 that divides 25836 without a remainder.

1, 2, 3, 4, 6, 12, 2153, 4306, 6459, 8612, 12918

Step-4: Factors of 25840

List of positive integer factors of 25840 that divides 25836 without a remainder.

1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 12920

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25836 and 25840. The biggest common factor number is the GCF number.
So the greatest common factor 25836 and 25840 is 4.

Also check out the Least Common Multiple of 25836 and 25840