What is the Greatest Common Factor of 42778 and 42796?

Greatest common factor (GCF) of 42778 and 42796 is 2.

GCF(42778,42796) = 2

We will now calculate the prime factors of 42778 and 42796, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42778 and 42796.

How to find the GCF of 42778 and 42796?

We will first find the prime factorization of 42778 and 42796. After we will calculate the factors of 42778 and 42796 and find the biggest common factor number .

Step-1: Prime Factorization of 42778

Prime factors of 42778 are 2, 73, 293. Prime factorization of 42778 in exponential form is:

42778 = 2¹ × 73¹ × 293¹

Step-2: Prime Factorization of 42796

Prime factors of 42796 are 2, 13, 823. Prime factorization of 42796 in exponential form is:

42796 = 2² × 13¹ × 823¹

Step-3: Factors of 42778

List of positive integer factors of 42778 that divides 42778 without a remainder.

1, 2, 73, 146, 293, 586, 21389

Step-4: Factors of 42796

List of positive integer factors of 42796 that divides 42778 without a remainder.

1, 2, 4, 13, 26, 52, 823, 1646, 3292, 10699, 21398

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42778 and 42796. The biggest common factor number is the GCF number.
So the greatest common factor 42778 and 42796 is 2.

Also check out the Least Common Multiple of 42778 and 42796