What is the Greatest Common Factor of 61286 and 61290?

Greatest common factor (GCF) of 61286 and 61290 is 2.

GCF(61286,61290) = 2

We will now calculate the prime factors of 61286 and 61290, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61286 and 61290.

How to find the GCF of 61286 and 61290?

We will first find the prime factorization of 61286 and 61290. After we will calculate the factors of 61286 and 61290 and find the biggest common factor number .

Step-1: Prime Factorization of 61286

Prime factors of 61286 are 2, 30643. Prime factorization of 61286 in exponential form is:

61286 = 2¹ × 30643¹

Step-2: Prime Factorization of 61290

Prime factors of 61290 are 2, 3, 5, 227. Prime factorization of 61290 in exponential form is:

61290 = 2¹ × 3³ × 5¹ × 227¹

Step-3: Factors of 61286

List of positive integer factors of 61286 that divides 61286 without a remainder.

1, 2, 30643

Step-4: Factors of 61290

List of positive integer factors of 61290 that divides 61286 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 227, 270, 454, 681, 1135, 1362, 2043, 2270, 3405, 4086, 6129, 6810, 10215, 12258, 20430, 30645

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61286 and 61290. The biggest common factor number is the GCF number.
So the greatest common factor 61286 and 61290 is 2.

Also check out the Least Common Multiple of 61286 and 61290