Greatest Common Factor of 21, 33, 72, 318

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

• Greatest Common Factor of 21, 33, 72, 318 by common division method
• Greatest Common Factor of 21, 33, 72, 318 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 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 318

List of positive integer factors of 318 that divides 318 without a remainder.

1,2,3,6,53,106,159,318

Greatest Common Factor

We found the factors 21,33,72,318 . The biggest common factor number is the GCF number.
So the greatest common factor 21,33,72,318 is 3.

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

• GCF of 17, 72, 69, 289
• GCF of 40, 30, 52, 114
• GCF of 88, 62, 62, 116
• GCF of 61, 74, 51, 332
• GCF of 11, 77, 24, 394

1. What is the GCF of 21, 33, 72, 318?

Answer: GCF of 21, 33, 72, 318 is 3.

2. How to Find the GCF of 21, 33, 72, 318

Answer: Greatest Common Factor(GCF) of 21, 33, 72, 318 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 33, 72, 318) = 3.