What is the Greatest Common Factor of 31605 and 31615?

Greatest common factor (GCF) of 31605 and 31615 is 5.

GCF(31605,31615) = 5

We will now calculate the prime factors of 31605 and 31615, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31605 and 31615.

How to find the GCF of 31605 and 31615?

We will first find the prime factorization of 31605 and 31615. After we will calculate the factors of 31605 and 31615 and find the biggest common factor number .

Step-1: Prime Factorization of 31605

Prime factors of 31605 are 3, 5, 7, 43. Prime factorization of 31605 in exponential form is:

31605 = 3¹ × 5¹ × 7² × 43¹

Step-2: Prime Factorization of 31615

Prime factors of 31615 are 5, 6323. Prime factorization of 31615 in exponential form is:

31615 = 5¹ × 6323¹

Step-3: Factors of 31605

List of positive integer factors of 31605 that divides 31605 without a remainder.

1, 3, 5, 7, 15, 21, 35, 43, 49, 105, 129, 147, 215, 245, 301, 645, 735, 903, 1505, 2107, 4515, 6321, 10535

Step-4: Factors of 31615

List of positive integer factors of 31615 that divides 31605 without a remainder.

1, 5, 6323

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31605 and 31615. The biggest common factor number is the GCF number.
So the greatest common factor 31605 and 31615 is 5.

Also check out the Least Common Multiple of 31605 and 31615