What is the Greatest Common Factor of 31561 and 31578?

Greatest common factor (GCF) of 31561 and 31578 is 1.

GCF(31561,31578) = 1

We will now calculate the prime factors of 31561 and 31578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31561 and 31578.

How to find the GCF of 31561 and 31578?

We will first find the prime factorization of 31561 and 31578. After we will calculate the factors of 31561 and 31578 and find the biggest common factor number .

Step-1: Prime Factorization of 31561

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

31561 = 37¹ × 853¹

Step-2: Prime Factorization of 31578

Prime factors of 31578 are 2, 3, 19, 277. Prime factorization of 31578 in exponential form is:

31578 = 2¹ × 3¹ × 19¹ × 277¹

Step-3: Factors of 31561

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

1, 37, 853

Step-4: Factors of 31578

List of positive integer factors of 31578 that divides 31561 without a remainder.

1, 2, 3, 6, 19, 38, 57, 114, 277, 554, 831, 1662, 5263, 10526, 15789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31561 and 31578. The biggest common factor number is the GCF number.
So the greatest common factor 31561 and 31578 is 1.

Also check out the Least Common Multiple of 31561 and 31578