What is the Greatest Common Factor of 81378 and 81393?

Greatest common factor (GCF) of 81378 and 81393 is 3.

GCF(81378,81393) = 3

We will now calculate the prime factors of 81378 and 81393, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81378 and 81393.

How to find the GCF of 81378 and 81393?

We will first find the prime factorization of 81378 and 81393. After we will calculate the factors of 81378 and 81393 and find the biggest common factor number .

Step-1: Prime Factorization of 81378

Prime factors of 81378 are 2, 3, 11, 137. Prime factorization of 81378 in exponential form is:

81378 = 2¹ × 3³ × 11¹ × 137¹

Step-2: Prime Factorization of 81393

Prime factors of 81393 are 3, 13, 2087. Prime factorization of 81393 in exponential form is:

81393 = 3¹ × 13¹ × 2087¹

Step-3: Factors of 81378

List of positive integer factors of 81378 that divides 81378 without a remainder.

1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 137, 198, 274, 297, 411, 594, 822, 1233, 1507, 2466, 3014, 3699, 4521, 7398, 9042, 13563, 27126, 40689

Step-4: Factors of 81393

List of positive integer factors of 81393 that divides 81378 without a remainder.

1, 3, 13, 39, 2087, 6261, 27131

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81378 and 81393. The biggest common factor number is the GCF number.
So the greatest common factor 81378 and 81393 is 3.

Also check out the Least Common Multiple of 81378 and 81393