What is the Greatest Common Factor of 7520 and 7540?

Greatest common factor (GCF) of 7520 and 7540 is 20.

GCF(7520,7540) = 20

We will now calculate the prime factors of 7520 and 7540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7520 and 7540.

How to find the GCF of 7520 and 7540?

We will first find the prime factorization of 7520 and 7540. After we will calculate the factors of 7520 and 7540 and find the biggest common factor number .

Step-1: Prime Factorization of 7520

Prime factors of 7520 are 2, 5, 47. Prime factorization of 7520 in exponential form is:

7520 = 2⁵ × 5¹ × 47¹

Step-2: 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-3: Factors of 7520

List of positive integer factors of 7520 that divides 7520 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 3760

Step-4: Factors of 7540

List of positive integer factors of 7540 that divides 7520 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7520 and 7540. The biggest common factor number is the GCF number.
So the greatest common factor 7520 and 7540 is 20.

Also check out the Least Common Multiple of 7520 and 7540