Greatest Common Factor of 28, 20, 84, 997

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

• Greatest Common Factor of 28, 20, 84, 997 by common division method
• Greatest Common Factor of 28, 20, 84, 997 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 20

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

1,2,4,5,10,20

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 997

List of positive integer factors of 997 that divides 997 without a remainder.

1,997

Greatest Common Factor

We found the factors 28,20,84,997 . The biggest common factor number is the GCF number.
So the greatest common factor 28,20,84,997 is 1.

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

• GCF of 51, 94, 42, 829
• GCF of 92, 49, 85, 628
• GCF of 81, 10, 13, 272
• GCF of 81, 62, 96, 485
• GCF of 49, 11, 52, 905

1. What is the GCF of 28, 20, 84, 997?

Answer: GCF of 28, 20, 84, 997 is 1.

2. How to Find the GCF of 28, 20, 84, 997

Answer: Greatest Common Factor(GCF) of 28, 20, 84, 997 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 20, 84, 997) = 1.