What is the Greatest Common Factor of 42758 and 42770?

Greatest common factor (GCF) of 42758 and 42770 is 2.

GCF(42758,42770) = 2

We will now calculate the prime factors of 42758 and 42770, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42758 and 42770.

How to find the GCF of 42758 and 42770?

We will first find the prime factorization of 42758 and 42770. After we will calculate the factors of 42758 and 42770 and find the biggest common factor number .

Step-1: Prime Factorization of 42758

Prime factors of 42758 are 2, 21379. Prime factorization of 42758 in exponential form is:

42758 = 2¹ × 21379¹

Step-2: Prime Factorization of 42770

Prime factors of 42770 are 2, 5, 7, 13, 47. Prime factorization of 42770 in exponential form is:

42770 = 2¹ × 5¹ × 7¹ × 13¹ × 47¹

Step-3: Factors of 42758

List of positive integer factors of 42758 that divides 42758 without a remainder.

1, 2, 21379

Step-4: Factors of 42770

List of positive integer factors of 42770 that divides 42758 without a remainder.

1, 2, 5, 7, 10, 13, 14, 26, 35, 47, 65, 70, 91, 94, 130, 182, 235, 329, 455, 470, 611, 658, 910, 1222, 1645, 3055, 3290, 4277, 6110, 8554, 21385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42758 and 42770. The biggest common factor number is the GCF number.
So the greatest common factor 42758 and 42770 is 2.

Also check out the Least Common Multiple of 42758 and 42770