What is the Greatest Common Factor of 25835 and 25840?

Greatest common factor (GCF) of 25835 and 25840 is 5.

GCF(25835,25840) = 5

We will now calculate the prime factors of 25835 and 25840, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25835 and 25840.

How to find the GCF of 25835 and 25840?

We will first find the prime factorization of 25835 and 25840. After we will calculate the factors of 25835 and 25840 and find the biggest common factor number .

Step-1: Prime Factorization of 25835

Prime factors of 25835 are 5, 5167. Prime factorization of 25835 in exponential form is:

25835 = 5¹ × 5167¹

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 25835

List of positive integer factors of 25835 that divides 25835 without a remainder.

1, 5, 5167

Step-4: Factors of 25840

List of positive integer factors of 25840 that divides 25835 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 25835 and 25840. The biggest common factor number is the GCF number.
So the greatest common factor 25835 and 25840 is 5.

Also check out the Least Common Multiple of 25835 and 25840