Greatest Common Factor of 644, 378, 678

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 644, 378, 678 by common division method
• Greatest Common Factor of 644, 378, 678 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 644

List of positive integer factors of 644 that divides 644 without a remainder.

1,2,4,7,14,23,28,46,92,161,322,644

Factors of 378

List of positive integer factors of 378 that divides 378 without a remainder.

1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Greatest Common Factor

We found the factors 644,378,678 . The biggest common factor number is the GCF number.
So the greatest common factor 644,378,678 is 2.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 209, 935, 544
• GCF of 629, 462, 961
• GCF of 458, 977, 109
• GCF of 962, 835, 242
• GCF of 758, 702, 813

1. What is the GCF of 644, 378, 678?

Answer: GCF of 644, 378, 678 is 2.

2. How to Find the GCF of 644, 378, 678

Answer: Greatest Common Factor(GCF) of 644, 378, 678 = 2

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(644, 378, 678) = 2.