Greatest Common Factor of 84, 51, 53, 20

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

• Greatest Common Factor of 84, 51, 53, 20 by common division method
• Greatest Common Factor of 84, 51, 53, 20 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 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 84,51,53,20 . The biggest common factor number is the GCF number.
So the greatest common factor 84,51,53,20 is 1.

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

• GCF of 82, 81, 80, 94
• GCF of 94, 74, 65, 87
• GCF of 42, 25, 60, 61
• GCF of 61, 30, 67, 70
• GCF of 13, 73, 75, 29

1. What is the GCF of 84, 51, 53, 20?

Answer: GCF of 84, 51, 53, 20 is 1.

2. How to Find the GCF of 84, 51, 53, 20

Answer: Greatest Common Factor(GCF) of 84, 51, 53, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(84, 51, 53, 20) = 1.