What is the Greatest Common Factor of 42345 and 42357?

Greatest common factor (GCF) of 42345 and 42357 is 3.

GCF(42345,42357) = 3

We will now calculate the prime factors of 42345 and 42357, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42345 and 42357.

How to find the GCF of 42345 and 42357?

We will first find the prime factorization of 42345 and 42357. After we will calculate the factors of 42345 and 42357 and find the biggest common factor number .

Step-1: Prime Factorization of 42345

Prime factors of 42345 are 3, 5, 941. Prime factorization of 42345 in exponential form is:

42345 = 3² × 5¹ × 941¹

Step-2: Prime Factorization of 42357

Prime factors of 42357 are 3, 7, 2017. Prime factorization of 42357 in exponential form is:

42357 = 3¹ × 7¹ × 2017¹

Step-3: Factors of 42345

List of positive integer factors of 42345 that divides 42345 without a remainder.

1, 3, 5, 9, 15, 45, 941, 2823, 4705, 8469, 14115

Step-4: Factors of 42357

List of positive integer factors of 42357 that divides 42345 without a remainder.

1, 3, 7, 21, 2017, 6051, 14119

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42345 and 42357. The biggest common factor number is the GCF number.
So the greatest common factor 42345 and 42357 is 3.

Also check out the Least Common Multiple of 42345 and 42357