What is the Greatest Common Factor of 61015 and 61021?

Greatest common factor (GCF) of 61015 and 61021 is 1.

GCF(61015,61021) = 1

We will now calculate the prime factors of 61015 and 61021, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61015 and 61021.

How to find the GCF of 61015 and 61021?

We will first find the prime factorization of 61015 and 61021. After we will calculate the factors of 61015 and 61021 and find the biggest common factor number .

Step-1: Prime Factorization of 61015

Prime factors of 61015 are 5, 12203. Prime factorization of 61015 in exponential form is:

61015 = 5¹ × 12203¹

Step-2: Prime Factorization of 61021

Prime factors of 61021 are 139, 439. Prime factorization of 61021 in exponential form is:

61021 = 139¹ × 439¹

Step-3: Factors of 61015

List of positive integer factors of 61015 that divides 61015 without a remainder.

1, 5, 12203

Step-4: Factors of 61021

List of positive integer factors of 61021 that divides 61015 without a remainder.

1, 139, 439

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61015 and 61021. The biggest common factor number is the GCF number.
So the greatest common factor 61015 and 61021 is 1.

Also check out the Least Common Multiple of 61015 and 61021