What is the Greatest Common Factor of 25540 and 25550?

Greatest common factor (GCF) of 25540 and 25550 is 10.

GCF(25540,25550) = 10

We will now calculate the prime factors of 25540 and 25550, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25540 and 25550.

How to find the GCF of 25540 and 25550?

We will first find the prime factorization of 25540 and 25550. After we will calculate the factors of 25540 and 25550 and find the biggest common factor number .

Step-1: Prime Factorization of 25540

Prime factors of 25540 are 2, 5, 1277. Prime factorization of 25540 in exponential form is:

25540 = 2² × 5¹ × 1277¹

Step-2: Prime Factorization of 25550

Prime factors of 25550 are 2, 5, 7, 73. Prime factorization of 25550 in exponential form is:

25550 = 2¹ × 5² × 7¹ × 73¹

Step-3: Factors of 25540

List of positive integer factors of 25540 that divides 25540 without a remainder.

1, 2, 4, 5, 10, 20, 1277, 2554, 5108, 6385, 12770

Step-4: Factors of 25550

List of positive integer factors of 25550 that divides 25540 without a remainder.

1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 73, 146, 175, 350, 365, 511, 730, 1022, 1825, 2555, 3650, 5110, 12775

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25540 and 25550. The biggest common factor number is the GCF number.
So the greatest common factor 25540 and 25550 is 10.

Also check out the Least Common Multiple of 25540 and 25550