Greatest Common Factor of 18, 46, 42, 39

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

• Greatest Common Factor of 18, 46, 42, 39 by common division method
• Greatest Common Factor of 18, 46, 42, 39 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 46

List of positive integer factors of 46 that divides 46 without a remainder.

1,2,23,46

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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Greatest Common Factor

We found the factors 18,46,42,39 . The biggest common factor number is the GCF number.
So the greatest common factor 18,46,42,39 is 1.

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

• GCF of 84, 97, 62, 81
• GCF of 45, 46, 92, 11
• GCF of 22, 74, 88, 55
• GCF of 36, 53, 45, 83
• GCF of 47, 75, 19, 73

1. What is the GCF of 18, 46, 42, 39?

Answer: GCF of 18, 46, 42, 39 is 1.

2. How to Find the GCF of 18, 46, 42, 39

Answer: Greatest Common Factor(GCF) of 18, 46, 42, 39 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 46, 42, 39) = 1.