Greatest Common Factor of 15, 42, 53, 117

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

• Greatest Common Factor of 15, 42, 53, 117 by common division method
• Greatest Common Factor of 15, 42, 53, 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 53

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

1,53

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 15,42,53,117 . The biggest common factor number is the GCF number.
So the greatest common factor 15,42,53,117 is 1.

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

• GCF of 76, 12, 61, 200
• GCF of 20, 80, 71, 129
• GCF of 46, 66, 93, 937
• GCF of 50, 71, 70, 551
• GCF of 16, 61, 43, 573

1. What is the GCF of 15, 42, 53, 117?

Answer: GCF of 15, 42, 53, 117 is 1.

2. How to Find the GCF of 15, 42, 53, 117

Answer: Greatest Common Factor(GCF) of 15, 42, 53, 117 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 42, 53, 117) = 1.