What is the Greatest Common Factor of 31240 and 31260?

Greatest common factor (GCF) of 31240 and 31260 is 20.

GCF(31240,31260) = 20

We will now calculate the prime factors of 31240 and 31260, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31240 and 31260.

How to find the GCF of 31240 and 31260?

We will first find the prime factorization of 31240 and 31260. After we will calculate the factors of 31240 and 31260 and find the biggest common factor number .

Step-1: Prime Factorization of 31240

Prime factors of 31240 are 2, 5, 11, 71. Prime factorization of 31240 in exponential form is:

31240 = 2³ × 5¹ × 11¹ × 71¹

Step-2: Prime Factorization of 31260

Prime factors of 31260 are 2, 3, 5, 521. Prime factorization of 31260 in exponential form is:

31260 = 2² × 3¹ × 5¹ × 521¹

Step-3: Factors of 31240

List of positive integer factors of 31240 that divides 31240 without a remainder.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 6248, 7810, 15620

Step-4: Factors of 31260

List of positive integer factors of 31260 that divides 31240 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 521, 1042, 1563, 2084, 2605, 3126, 5210, 6252, 7815, 10420, 15630

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31240 and 31260. The biggest common factor number is the GCF number.
So the greatest common factor 31240 and 31260 is 20.

Also check out the Least Common Multiple of 31240 and 31260