Greatest Common Factor of 21, 39, 966

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

• Greatest Common Factor of 21, 39, 966 by common division method
• Greatest Common Factor of 21, 39, 966 with matching the biggest common factor

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

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 966

List of positive integer factors of 966 that divides 966 without a remainder.

1,2,3,6,7,14,21,23,42,46,69,138,161,322,483,966

Greatest Common Factor

We found the factors 21,39,966 . The biggest common factor number is the GCF number.
So the greatest common factor 21,39,966 is 3.

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

• GCF of 73, 42, 734
• GCF of 21, 60, 755
• GCF of 79, 55, 257
• GCF of 87, 73, 261
• GCF of 61, 79, 667

1. What is the GCF of 21, 39, 966?

Answer: GCF of 21, 39, 966 is 3.

2. How to Find the GCF of 21, 39, 966

Answer: Greatest Common Factor(GCF) of 21, 39, 966 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 39, 966) = 3.