What is the Greatest Common Factor of 31775 and 31780?

Greatest common factor (GCF) of 31775 and 31780 is 5.

GCF(31775,31780) = 5

We will now calculate the prime factors of 31775 and 31780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31775 and 31780.

How to find the GCF of 31775 and 31780?

We will first find the prime factorization of 31775 and 31780. After we will calculate the factors of 31775 and 31780 and find the biggest common factor number .

Step-1: Prime Factorization of 31775

Prime factors of 31775 are 5, 31, 41. Prime factorization of 31775 in exponential form is:

31775 = 5² × 31¹ × 41¹

Step-2: Prime Factorization of 31780

Prime factors of 31780 are 2, 5, 7, 227. Prime factorization of 31780 in exponential form is:

31780 = 2² × 5¹ × 7¹ × 227¹

Step-3: Factors of 31775

List of positive integer factors of 31775 that divides 31775 without a remainder.

1, 5, 25, 31, 41, 155, 205, 775, 1025, 1271, 6355

Step-4: Factors of 31780

List of positive integer factors of 31780 that divides 31775 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 908, 1135, 1589, 2270, 3178, 4540, 6356, 7945, 15890

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31775 and 31780. The biggest common factor number is the GCF number.
So the greatest common factor 31775 and 31780 is 5.

Also check out the Least Common Multiple of 31775 and 31780