Greatest Common Factor of 21, 42, 73, 318

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

• Greatest Common Factor of 21, 42, 73, 318 by common division method
• Greatest Common Factor of 21, 42, 73, 318 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 21

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

1,3,7,21

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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

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 21,42,73,318 . The biggest common factor number is the GCF number.
So the greatest common factor 21,42,73,318 is 1.

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

• GCF of 31, 57, 60, 857
• GCF of 79, 35, 76, 589
• GCF of 42, 20, 38, 297
• GCF of 97, 99, 69, 233
• GCF of 12, 75, 20, 930

1. What is the GCF of 21, 42, 73, 318?

Answer: GCF of 21, 42, 73, 318 is 1.

2. How to Find the GCF of 21, 42, 73, 318

Answer: Greatest Common Factor(GCF) of 21, 42, 73, 318 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 42, 73, 318) = 1.