What is the Greatest Common Factor of 42408 and 42426?

Greatest common factor (GCF) of 42408 and 42426 is 18.

GCF(42408,42426) = 18

We will now calculate the prime factors of 42408 and 42426, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42408 and 42426.

How to find the GCF of 42408 and 42426?

We will first find the prime factorization of 42408 and 42426. After we will calculate the factors of 42408 and 42426 and find the biggest common factor number .

Step-1: Prime Factorization of 42408

Prime factors of 42408 are 2, 3, 19, 31. Prime factorization of 42408 in exponential form is:

42408 = 2³ × 3² × 19¹ × 31¹

Step-2: Prime Factorization of 42426

Prime factors of 42426 are 2, 3, 2357. Prime factorization of 42426 in exponential form is:

42426 = 2¹ × 3² × 2357¹

Step-3: Factors of 42408

List of positive integer factors of 42408 that divides 42408 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 31, 36, 38, 57, 62, 72, 76, 93, 114, 124, 152, 171, 186, 228, 248, 279, 342, 372, 456, 558, 589, 684, 744, 1116, 1178, 1368, 1767, 2232, 2356, 3534, 4712, 5301, 7068, 10602, 14136, 21204

Step-4: Factors of 42426

List of positive integer factors of 42426 that divides 42408 without a remainder.

1, 2, 3, 6, 9, 18, 2357, 4714, 7071, 14142, 21213

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42408 and 42426. The biggest common factor number is the GCF number.
So the greatest common factor 42408 and 42426 is 18.

Also check out the Least Common Multiple of 42408 and 42426