What is the Greatest Common Factor of 67640 and 67646?

Greatest common factor (GCF) of 67640 and 67646 is 2.

GCF(67640,67646) = 2

We will now calculate the prime factors of 67640 and 67646, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67640 and 67646.

How to find the GCF of 67640 and 67646?

We will first find the prime factorization of 67640 and 67646. After we will calculate the factors of 67640 and 67646 and find the biggest common factor number .

Step-1: Prime Factorization of 67640

Prime factors of 67640 are 2, 5, 19, 89. Prime factorization of 67640 in exponential form is:

67640 = 2³ × 5¹ × 19¹ × 89¹

Step-2: Prime Factorization of 67646

Prime factors of 67646 are 2, 149, 227. Prime factorization of 67646 in exponential form is:

67646 = 2¹ × 149¹ × 227¹

Step-3: Factors of 67640

List of positive integer factors of 67640 that divides 67640 without a remainder.

1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 712, 760, 890, 1691, 1780, 3382, 3560, 6764, 8455, 13528, 16910, 33820

Step-4: Factors of 67646

List of positive integer factors of 67646 that divides 67640 without a remainder.

1, 2, 149, 227, 298, 454, 33823

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67640 and 67646. The biggest common factor number is the GCF number.
So the greatest common factor 67640 and 67646 is 2.

Also check out the Least Common Multiple of 67640 and 67646