What is the Greatest Common Factor of 42578 and 42586?

Greatest common factor (GCF) of 42578 and 42586 is 2.

GCF(42578,42586) = 2

We will now calculate the prime factors of 42578 and 42586, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42578 and 42586.

How to find the GCF of 42578 and 42586?

We will first find the prime factorization of 42578 and 42586. After we will calculate the factors of 42578 and 42586 and find the biggest common factor number .

Step-1: Prime Factorization of 42578

Prime factors of 42578 are 2, 61, 349. Prime factorization of 42578 in exponential form is:

42578 = 2¹ × 61¹ × 349¹

Step-2: Prime Factorization of 42586

Prime factors of 42586 are 2, 107, 199. Prime factorization of 42586 in exponential form is:

42586 = 2¹ × 107¹ × 199¹

Step-3: Factors of 42578

List of positive integer factors of 42578 that divides 42578 without a remainder.

1, 2, 61, 122, 349, 698, 21289

Step-4: Factors of 42586

List of positive integer factors of 42586 that divides 42578 without a remainder.

1, 2, 107, 199, 214, 398, 21293

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42578 and 42586. The biggest common factor number is the GCF number.
So the greatest common factor 42578 and 42586 is 2.

Also check out the Least Common Multiple of 42578 and 42586