What is the Greatest Common Factor of 31765 and 31785?

Greatest common factor (GCF) of 31765 and 31785 is 5.

GCF(31765,31785) = 5

We will now calculate the prime factors of 31765 and 31785, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31765 and 31785.

How to find the GCF of 31765 and 31785?

We will first find the prime factorization of 31765 and 31785. After we will calculate the factors of 31765 and 31785 and find the biggest common factor number .

Step-1: Prime Factorization of 31765

Prime factors of 31765 are 5, 6353. Prime factorization of 31765 in exponential form is:

31765 = 5¹ × 6353¹

Step-2: Prime Factorization of 31785

Prime factors of 31785 are 3, 5, 13, 163. Prime factorization of 31785 in exponential form is:

31785 = 3¹ × 5¹ × 13¹ × 163¹

Step-3: Factors of 31765

List of positive integer factors of 31765 that divides 31765 without a remainder.

1, 5, 6353

Step-4: Factors of 31785

List of positive integer factors of 31785 that divides 31765 without a remainder.

1, 3, 5, 13, 15, 39, 65, 163, 195, 489, 815, 2119, 2445, 6357, 10595

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31765 and 31785. The biggest common factor number is the GCF number.
So the greatest common factor 31765 and 31785 is 5.

Also check out the Least Common Multiple of 31765 and 31785