What is the Greatest Common Factor of 31395 and 31410?

Greatest common factor (GCF) of 31395 and 31410 is 15.

GCF(31395,31410) = 15

We will now calculate the prime factors of 31395 and 31410, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31395 and 31410.

How to find the GCF of 31395 and 31410?

We will first find the prime factorization of 31395 and 31410. After we will calculate the factors of 31395 and 31410 and find the biggest common factor number .

Step-1: Prime Factorization of 31395

Prime factors of 31395 are 3, 5, 7, 13, 23. Prime factorization of 31395 in exponential form is:

31395 = 3¹ × 5¹ × 7¹ × 13¹ × 23¹

Step-2: Prime Factorization of 31410

Prime factors of 31410 are 2, 3, 5, 349. Prime factorization of 31410 in exponential form is:

31410 = 2¹ × 3² × 5¹ × 349¹

Step-3: Factors of 31395

List of positive integer factors of 31395 that divides 31395 without a remainder.

1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 65, 69, 91, 105, 115, 161, 195, 273, 299, 345, 455, 483, 805, 897, 1365, 1495, 2093, 2415, 4485, 6279, 10465

Step-4: Factors of 31410

List of positive integer factors of 31410 that divides 31395 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 349, 698, 1047, 1745, 2094, 3141, 3490, 5235, 6282, 10470, 15705

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31395 and 31410. The biggest common factor number is the GCF number.
So the greatest common factor 31395 and 31410 is 15.

Also check out the Least Common Multiple of 31395 and 31410