What is the Greatest Common Factor of 15620 and 15631?

Greatest common factor (GCF) of 15620 and 15631 is 11.

GCF(15620,15631) = 11

We will now calculate the prime factors of 15620 and 15631, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15620 and 15631.

How to find the GCF of 15620 and 15631?

We will first find the prime factorization of 15620 and 15631. After we will calculate the factors of 15620 and 15631 and find the biggest common factor number .

Step-1: Prime Factorization of 15620

Prime factors of 15620 are 2, 5, 11, 71. Prime factorization of 15620 in exponential form is:

15620 = 2² × 5¹ × 11¹ × 71¹

Step-2: Prime Factorization of 15631

Prime factors of 15631 are 7, 11, 29. Prime factorization of 15631 in exponential form is:

15631 = 7² × 11¹ × 29¹

Step-3: Factors of 15620

List of positive integer factors of 15620 that divides 15620 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810

Step-4: Factors of 15631

List of positive integer factors of 15631 that divides 15620 without a remainder.

1, 7, 11, 29, 49, 77, 203, 319, 539, 1421, 2233

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15620 and 15631. The biggest common factor number is the GCF number.
So the greatest common factor 15620 and 15631 is 11.

Also check out the Least Common Multiple of 15620 and 15631