What is the Greatest Common Factor of 42687 and 42704?

Greatest common factor (GCF) of 42687 and 42704 is 17.

GCF(42687,42704) = 17

We will now calculate the prime factors of 42687 and 42704, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42687 and 42704.

How to find the GCF of 42687 and 42704?

We will first find the prime factorization of 42687 and 42704. After we will calculate the factors of 42687 and 42704 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 42704

Prime factors of 42704 are 2, 17, 157. Prime factorization of 42704 in exponential form is:

42704 = 2⁴ × 17¹ × 157¹

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 42704

List of positive integer factors of 42704 that divides 42687 without a remainder.

1, 2, 4, 8, 16, 17, 34, 68, 136, 157, 272, 314, 628, 1256, 2512, 2669, 5338, 10676, 21352

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42687 and 42704. The biggest common factor number is the GCF number.
So the greatest common factor 42687 and 42704 is 17.

Also check out the Least Common Multiple of 42687 and 42704