Greatest Common Factor of 28, 13, 117

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

• Greatest Common Factor of 28, 13, 117 by common division method
• Greatest Common Factor of 28, 13, 117 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 117

List of positive integer factors of 117 that divides 117 without a remainder.

1,3,9,13,39,117

Greatest Common Factor

We found the factors 28,13,117 . The biggest common factor number is the GCF number.
So the greatest common factor 28,13,117 is 1.

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

• GCF of 19, 94, 982
• GCF of 90, 38, 930
• GCF of 95, 28, 361
• GCF of 60, 79, 829
• GCF of 92, 79, 933

1. What is the GCF of 28, 13, 117?

Answer: GCF of 28, 13, 117 is 1.

2. How to Find the GCF of 28, 13, 117

Answer: Greatest Common Factor(GCF) of 28, 13, 117 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 13, 117) = 1.