What is the Greatest Common Factor of 78658 and 78678?

Greatest common factor (GCF) of 78658 and 78678 is 2.

GCF(78658,78678) = 2

We will now calculate the prime factors of 78658 and 78678, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78658 and 78678.

How to find the GCF of 78658 and 78678?

We will first find the prime factorization of 78658 and 78678. After we will calculate the factors of 78658 and 78678 and find the biggest common factor number .

Step-1: Prime Factorization of 78658

Prime factors of 78658 are 2, 67, 587. Prime factorization of 78658 in exponential form is:

78658 = 2¹ × 67¹ × 587¹

Step-2: Prime Factorization of 78678

Prime factors of 78678 are 2, 3, 31, 47. Prime factorization of 78678 in exponential form is:

78678 = 2¹ × 3³ × 31¹ × 47¹

Step-3: Factors of 78658

List of positive integer factors of 78658 that divides 78658 without a remainder.

1, 2, 67, 134, 587, 1174, 39329

Step-4: Factors of 78678

List of positive integer factors of 78678 that divides 78658 without a remainder.

1, 2, 3, 6, 9, 18, 27, 31, 47, 54, 62, 93, 94, 141, 186, 279, 282, 423, 558, 837, 846, 1269, 1457, 1674, 2538, 2914, 4371, 8742, 13113, 26226, 39339

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78658 and 78678. The biggest common factor number is the GCF number.
So the greatest common factor 78658 and 78678 is 2.

Also check out the Least Common Multiple of 78658 and 78678