Greatest Common Factor of 642, 108, 51

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

• Greatest Common Factor of 642, 108, 51 by common division method
• Greatest Common Factor of 642, 108, 51 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Factors of 108

List of positive integer factors of 108 that divides 108 without a remainder.

1,2,3,4,6,9,12,18,27,36,54,108

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Greatest Common Factor

We found the factors 642,108,51 . The biggest common factor number is the GCF number.
So the greatest common factor 642,108,51 is 3.

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

• GCF of 328, 679, 46
• GCF of 150, 827, 50
• GCF of 664, 154, 99
• GCF of 756, 237, 29
• GCF of 368, 146, 26

1. What is the GCF of 642, 108, 51?

Answer: GCF of 642, 108, 51 is 3.

2. How to Find the GCF of 642, 108, 51

Answer: Greatest Common Factor(GCF) of 642, 108, 51 = 3

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

Step 2: Then multiply all the prime factors GCF(642, 108, 51) = 3.