What is the Greatest Common Factor of 42151 and 42170?

Greatest common factor (GCF) of 42151 and 42170 is 1.

GCF(42151,42170) = 1

We will now calculate the prime factors of 42151 and 42170, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42151 and 42170.

How to find the GCF of 42151 and 42170?

We will first find the prime factorization of 42151 and 42170. After we will calculate the factors of 42151 and 42170 and find the biggest common factor number .

Step-1: Prime Factorization of 42151

Prime factors of 42151 are 61, 691. Prime factorization of 42151 in exponential form is:

42151 = 61¹ × 691¹

Step-2: Prime Factorization of 42170

Prime factors of 42170 are 2, 5, 4217. Prime factorization of 42170 in exponential form is:

42170 = 2¹ × 5¹ × 4217¹

Step-3: Factors of 42151

List of positive integer factors of 42151 that divides 42151 without a remainder.

1, 61, 691

Step-4: Factors of 42170

List of positive integer factors of 42170 that divides 42151 without a remainder.

1, 2, 5, 10, 4217, 8434, 21085

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42151 and 42170. The biggest common factor number is the GCF number.
So the greatest common factor 42151 and 42170 is 1.

Also check out the Least Common Multiple of 42151 and 42170