What is the Greatest Common Factor of 42457 and 42470?

Greatest common factor (GCF) of 42457 and 42470 is 1.

GCF(42457,42470) = 1

We will now calculate the prime factors of 42457 and 42470, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42457 and 42470.

How to find the GCF of 42457 and 42470?

We will first find the prime factorization of 42457 and 42470. After we will calculate the factors of 42457 and 42470 and find the biggest common factor number .

Step-1: Prime Factorization of 42457

Prime factors of 42457 are 42457. Prime factorization of 42457 in exponential form is:

42457 = 42457¹

Step-2: Prime Factorization of 42470

Prime factors of 42470 are 2, 5, 31, 137. Prime factorization of 42470 in exponential form is:

42470 = 2¹ × 5¹ × 31¹ × 137¹

Step-3: Factors of 42457

List of positive integer factors of 42457 that divides 42457 without a remainder.

Step-4: Factors of 42470

List of positive integer factors of 42470 that divides 42457 without a remainder.

1, 2, 5, 10, 31, 62, 137, 155, 274, 310, 685, 1370, 4247, 8494, 21235

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42457 and 42470. The biggest common factor number is the GCF number.
So the greatest common factor 42457 and 42470 is 1.

Also check out the Least Common Multiple of 42457 and 42470