What is the Greatest Common Factor of 31225 and 31240?

Greatest common factor (GCF) of 31225 and 31240 is 5.

GCF(31225,31240) = 5

We will now calculate the prime factors of 31225 and 31240, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31225 and 31240.

How to find the GCF of 31225 and 31240?

We will first find the prime factorization of 31225 and 31240. After we will calculate the factors of 31225 and 31240 and find the biggest common factor number .

Step-1: Prime Factorization of 31225

Prime factors of 31225 are 5, 1249. Prime factorization of 31225 in exponential form is:

31225 = 5² × 1249¹

Step-2: 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-3: Factors of 31225

List of positive integer factors of 31225 that divides 31225 without a remainder.

1, 5, 25, 1249, 6245

Step-4: Factors of 31240

List of positive integer factors of 31240 that divides 31225 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31225 and 31240. The biggest common factor number is the GCF number.
So the greatest common factor 31225 and 31240 is 5.

Also check out the Least Common Multiple of 31225 and 31240