What is the Greatest Common Factor of 7540 and 7556?

Greatest common factor (GCF) of 7540 and 7556 is 4.

GCF(7540,7556) = 4

We will now calculate the prime factors of 7540 and 7556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7540 and 7556.

How to find the GCF of 7540 and 7556?

We will first find the prime factorization of 7540 and 7556. After we will calculate the factors of 7540 and 7556 and find the biggest common factor number .

Step-1: Prime Factorization of 7540

Prime factors of 7540 are 2, 5, 13, 29. Prime factorization of 7540 in exponential form is:

7540 = 2² × 5¹ × 13¹ × 29¹

Step-2: Prime Factorization of 7556

Prime factors of 7556 are 2, 1889. Prime factorization of 7556 in exponential form is:

7556 = 2² × 1889¹

Step-3: Factors of 7540

List of positive integer factors of 7540 that divides 7540 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770

Step-4: Factors of 7556

List of positive integer factors of 7556 that divides 7540 without a remainder.

1, 2, 4, 1889, 3778

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7540 and 7556. The biggest common factor number is the GCF number.
So the greatest common factor 7540 and 7556 is 4.

Also check out the Least Common Multiple of 7540 and 7556