What is the Greatest Common Factor of 31556 and 31561?

Greatest common factor (GCF) of 31556 and 31561 is 1.

GCF(31556,31561) = 1

We will now calculate the prime factors of 31556 and 31561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31556 and 31561.

How to find the GCF of 31556 and 31561?

We will first find the prime factorization of 31556 and 31561. After we will calculate the factors of 31556 and 31561 and find the biggest common factor number .

Step-1: Prime Factorization of 31556

Prime factors of 31556 are 2, 7, 23. Prime factorization of 31556 in exponential form is:

31556 = 2² × 7³ × 23¹

Step-2: Prime Factorization of 31561

Prime factors of 31561 are 37, 853. Prime factorization of 31561 in exponential form is:

31561 = 37¹ × 853¹

Step-3: Factors of 31556

List of positive integer factors of 31556 that divides 31556 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 343, 644, 686, 1127, 1372, 2254, 4508, 7889, 15778

Step-4: Factors of 31561

List of positive integer factors of 31561 that divides 31556 without a remainder.

1, 37, 853

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31556 and 31561. The biggest common factor number is the GCF number.
So the greatest common factor 31556 and 31561 is 1.

Also check out the Least Common Multiple of 31556 and 31561