Greatest Common Factor of 31, 18, 21, 273

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

• Greatest Common Factor of 31, 18, 21, 273 by common division method
• Greatest Common Factor of 31, 18, 21, 273 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 21

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

1,3,7,21

Factors of 273

List of positive integer factors of 273 that divides 273 without a remainder.

1,3,7,13,21,39,91,273

Greatest Common Factor

We found the factors 31,18,21,273 . The biggest common factor number is the GCF number.
So the greatest common factor 31,18,21,273 is 1.

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

• GCF of 11, 39, 82, 172
• GCF of 66, 20, 59, 194
• GCF of 98, 83, 92, 317
• GCF of 38, 22, 85, 528
• GCF of 74, 13, 44, 117

1. What is the GCF of 31, 18, 21, 273?

Answer: GCF of 31, 18, 21, 273 is 1.

2. How to Find the GCF of 31, 18, 21, 273

Answer: Greatest Common Factor(GCF) of 31, 18, 21, 273 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 18, 21, 273) = 1.