What is the Greatest Common Factor of 78397 and 78408?

Greatest common factor (GCF) of 78397 and 78408 is 11.

GCF(78397,78408) = 11

We will now calculate the prime factors of 78397 and 78408, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78397 and 78408.

How to find the GCF of 78397 and 78408?

We will first find the prime factorization of 78397 and 78408. After we will calculate the factors of 78397 and 78408 and find the biggest common factor number .

Step-1: Prime Factorization of 78397

Prime factors of 78397 are 11, 7127. Prime factorization of 78397 in exponential form is:

78397 = 11¹ × 7127¹

Step-2: Prime Factorization of 78408

Prime factors of 78408 are 2, 3, 11. Prime factorization of 78408 in exponential form is:

78408 = 2³ × 3⁴ × 11²

Step-3: Factors of 78397

List of positive integer factors of 78397 that divides 78397 without a remainder.

1, 11, 7127

Step-4: Factors of 78408

List of positive integer factors of 78408 that divides 78397 without a remainder.

1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 121, 132, 162, 198, 216, 242, 264, 297, 324, 363, 396, 484, 594, 648, 726, 792, 891, 968, 1089, 1188, 1452, 1782, 2178, 2376, 2904, 3267, 3564, 4356, 6534, 7128, 8712, 9801, 13068, 19602, 26136, 39204

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78397 and 78408. The biggest common factor number is the GCF number.
So the greatest common factor 78397 and 78408 is 11.

Also check out the Least Common Multiple of 78397 and 78408