What is the Greatest Common Factor of 42055 and 42065?

Greatest common factor (GCF) of 42055 and 42065 is 5.

GCF(42055,42065) = 5

We will now calculate the prime factors of 42055 and 42065, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42055 and 42065.

How to find the GCF of 42055 and 42065?

We will first find the prime factorization of 42055 and 42065. After we will calculate the factors of 42055 and 42065 and find the biggest common factor number .

Step-1: Prime Factorization of 42055

Prime factors of 42055 are 5, 13, 647. Prime factorization of 42055 in exponential form is:

42055 = 5¹ × 13¹ × 647¹

Step-2: Prime Factorization of 42065

Prime factors of 42065 are 5, 47, 179. Prime factorization of 42065 in exponential form is:

42065 = 5¹ × 47¹ × 179¹

Step-3: Factors of 42055

List of positive integer factors of 42055 that divides 42055 without a remainder.

1, 5, 13, 65, 647, 3235, 8411

Step-4: Factors of 42065

List of positive integer factors of 42065 that divides 42055 without a remainder.

1, 5, 47, 179, 235, 895, 8413

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42055 and 42065. The biggest common factor number is the GCF number.
So the greatest common factor 42055 and 42065 is 5.

Also check out the Least Common Multiple of 42055 and 42065