Greatest Common Factor of 83, 69, 21

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

• Greatest Common Factor of 83, 69, 21 by common division method
• Greatest Common Factor of 83, 69, 21 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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 83,69,21 . The biggest common factor number is the GCF number.
So the greatest common factor 83,69,21 is 1.

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

• GCF of 51, 75, 76
• GCF of 84, 19, 24
• GCF of 76, 13, 18
• GCF of 59, 22, 52
• GCF of 76, 35, 84

1. What is the GCF of 83, 69, 21?

Answer: GCF of 83, 69, 21 is 1.

2. How to Find the GCF of 83, 69, 21

Answer: Greatest Common Factor(GCF) of 83, 69, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(83, 69, 21) = 1.