What is the Greatest Common Factor of 42686 and 42704?

Greatest common factor (GCF) of 42686 and 42704 is 2.

GCF(42686,42704) = 2

We will now calculate the prime factors of 42686 and 42704, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42686 and 42704.

How to find the GCF of 42686 and 42704?

We will first find the prime factorization of 42686 and 42704. After we will calculate the factors of 42686 and 42704 and find the biggest common factor number .

Step-1: Prime Factorization of 42686

Prime factors of 42686 are 2, 7, 3049. Prime factorization of 42686 in exponential form is:

42686 = 2¹ × 7¹ × 3049¹

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 42686

List of positive integer factors of 42686 that divides 42686 without a remainder.

1, 2, 7, 14, 3049, 6098, 21343

Step-4: Factors of 42704

List of positive integer factors of 42704 that divides 42686 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 42686 and 42704. The biggest common factor number is the GCF number.
So the greatest common factor 42686 and 42704 is 2.

Also check out the Least Common Multiple of 42686 and 42704