What is the Greatest Common Factor of 53515 and 53521?

Greatest common factor (GCF) of 53515 and 53521 is 1.

GCF(53515,53521) = 1

We will now calculate the prime factors of 53515 and 53521, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 53515 and 53521.

How to find the GCF of 53515 and 53521?

We will first find the prime factorization of 53515 and 53521. After we will calculate the factors of 53515 and 53521 and find the biggest common factor number .

Step-1: Prime Factorization of 53515

Prime factors of 53515 are 5, 7, 11, 139. Prime factorization of 53515 in exponential form is:

53515 = 5¹ × 7¹ × 11¹ × 139¹

Step-2: Prime Factorization of 53521

Prime factors of 53521 are 13, 23, 179. Prime factorization of 53521 in exponential form is:

53521 = 13¹ × 23¹ × 179¹

Step-3: Factors of 53515

List of positive integer factors of 53515 that divides 53515 without a remainder.

1, 5, 7, 11, 35, 55, 77, 139, 385, 695, 973, 1529, 4865, 7645, 10703

Step-4: Factors of 53521

List of positive integer factors of 53521 that divides 53515 without a remainder.

1, 13, 23, 179, 299, 2327, 4117

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 53515 and 53521. The biggest common factor number is the GCF number.
So the greatest common factor 53515 and 53521 is 1.

Also check out the Least Common Multiple of 53515 and 53521