What is the Greatest Common Factor of 42408 and 42417?

Greatest common factor (GCF) of 42408 and 42417 is 9.

GCF(42408,42417) = 9

We will now calculate the prime factors of 42408 and 42417, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42408 and 42417.

How to find the GCF of 42408 and 42417?

We will first find the prime factorization of 42408 and 42417. After we will calculate the factors of 42408 and 42417 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 42417

Prime factors of 42417 are 3, 1571. Prime factorization of 42417 in exponential form is:

42417 = 3³ × 1571¹

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 42417

List of positive integer factors of 42417 that divides 42408 without a remainder.

1, 3, 9, 27, 1571, 4713, 14139

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42408 and 42417. The biggest common factor number is the GCF number.
So the greatest common factor 42408 and 42417 is 9.

Also check out the Least Common Multiple of 42408 and 42417