What is the Greatest Common Factor of 42470 and 42489?

Greatest common factor (GCF) of 42470 and 42489 is 1.

GCF(42470,42489) = 1

We will now calculate the prime factors of 42470 and 42489, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42470 and 42489.

How to find the GCF of 42470 and 42489?

We will first find the prime factorization of 42470 and 42489. After we will calculate the factors of 42470 and 42489 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 42489

Prime factors of 42489 are 3, 4721. Prime factorization of 42489 in exponential form is:

42489 = 3² × 4721¹

Step-3: Factors of 42470

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

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

Step-4: Factors of 42489

List of positive integer factors of 42489 that divides 42470 without a remainder.

1, 3, 9, 4721, 14163

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42470 and 42489. The biggest common factor number is the GCF number.
So the greatest common factor 42470 and 42489 is 1.

Also check out the Least Common Multiple of 42470 and 42489