What is the Greatest Common Factor of 42687 and 42702?

Greatest common factor (GCF) of 42687 and 42702 is 3.

GCF(42687,42702) = 3

We will now calculate the prime factors of 42687 and 42702, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42687 and 42702.

How to find the GCF of 42687 and 42702?

We will first find the prime factorization of 42687 and 42702. After we will calculate the factors of 42687 and 42702 and find the biggest common factor number .

Step-1: Prime Factorization of 42687

Prime factors of 42687 are 3, 17, 31. Prime factorization of 42687 in exponential form is:

42687 = 3⁴ × 17¹ × 31¹

Step-2: Prime Factorization of 42702

Prime factors of 42702 are 2, 3, 11, 647. Prime factorization of 42702 in exponential form is:

42702 = 2¹ × 3¹ × 11¹ × 647¹

Step-3: Factors of 42687

List of positive integer factors of 42687 that divides 42687 without a remainder.

1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 459, 527, 837, 1377, 1581, 2511, 4743, 14229

Step-4: Factors of 42702

List of positive integer factors of 42702 that divides 42687 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 647, 1294, 1941, 3882, 7117, 14234, 21351

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42687 and 42702. The biggest common factor number is the GCF number.
So the greatest common factor 42687 and 42702 is 3.

Also check out the Least Common Multiple of 42687 and 42702