Greatest Common Factor of 83, 27, 21, 18

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

• Greatest Common Factor of 83, 27, 21, 18 by common division method
• Greatest Common Factor of 83, 27, 21, 18 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 83

List of positive integer factors of 83 that divides 83 without a remainder.

1,83

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 21

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

1,3,7,21

Factors of 18

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

1,2,3,6,9,18

Greatest Common Factor

We found the factors 83,27,21,18 . The biggest common factor number is the GCF number.
So the greatest common factor 83,27,21,18 is 1.

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

• GCF of 59, 81, 89, 74
• GCF of 95, 36, 18, 64
• GCF of 84, 23, 30, 93
• GCF of 37, 74, 44, 85
• GCF of 65, 10, 56, 17

1. What is the GCF of 83, 27, 21, 18?

Answer: GCF of 83, 27, 21, 18 is 1.

2. How to Find the GCF of 83, 27, 21, 18

Answer: Greatest Common Factor(GCF) of 83, 27, 21, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(83, 27, 21, 18) = 1.