Greatest Common Factor of 42, 10, 646

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

• Greatest Common Factor of 42, 10, 646 by common division method
• Greatest Common Factor of 42, 10, 646 with matching the biggest common factor

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

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Greatest Common Factor

We found the factors 42,10,646 . The biggest common factor number is the GCF number.
So the greatest common factor 42,10,646 is 2.

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

• GCF of 19, 95, 346
• GCF of 26, 70, 573
• GCF of 33, 11, 179
• GCF of 37, 26, 451
• GCF of 89, 10, 820

1. What is the GCF of 42, 10, 646?

Answer: GCF of 42, 10, 646 is 2.

2. How to Find the GCF of 42, 10, 646

Answer: Greatest Common Factor(GCF) of 42, 10, 646 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 10, 646) = 2.