What is the Greatest Common Factor of 42147 and 42154?

Greatest common factor (GCF) of 42147 and 42154 is 7.

GCF(42147,42154) = 7

We will now calculate the prime factors of 42147 and 42154, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42147 and 42154.

How to find the GCF of 42147 and 42154?

We will first find the prime factorization of 42147 and 42154. After we will calculate the factors of 42147 and 42154 and find the biggest common factor number .

Step-1: Prime Factorization of 42147

Prime factors of 42147 are 3, 7, 223. Prime factorization of 42147 in exponential form is:

42147 = 3³ × 7¹ × 223¹

Step-2: Prime Factorization of 42154

Prime factors of 42154 are 2, 7, 3011. Prime factorization of 42154 in exponential form is:

42154 = 2¹ × 7¹ × 3011¹

Step-3: Factors of 42147

List of positive integer factors of 42147 that divides 42147 without a remainder.

1, 3, 7, 9, 21, 27, 63, 189, 223, 669, 1561, 2007, 4683, 6021, 14049

Step-4: Factors of 42154

List of positive integer factors of 42154 that divides 42147 without a remainder.

1, 2, 7, 14, 3011, 6022, 21077

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42147 and 42154. The biggest common factor number is the GCF number.
So the greatest common factor 42147 and 42154 is 7.

Also check out the Least Common Multiple of 42147 and 42154