Greatest Common Factor of 975, 39, 42

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

• Greatest Common Factor of 975, 39, 42 by common division method
• Greatest Common Factor of 975, 39, 42 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 975

List of positive integer factors of 975 that divides 975 without a remainder.

1,3,5,13,15,25,39,65,75,195,325,975

Factors of 39

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

1,3,13,39

Factors of 42

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

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

Greatest Common Factor

We found the factors 975,39,42 . The biggest common factor number is the GCF number.
So the greatest common factor 975,39,42 is 3.

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

• GCF of 966, 32, 36
• GCF of 970, 41, 47
• GCF of 929, 66, 68
• GCF of 325, 58, 58
• GCF of 255, 65, 88

1. What is the GCF of 975, 39, 42?

Answer: GCF of 975, 39, 42 is 3.

2. How to Find the GCF of 975, 39, 42

Answer: Greatest Common Factor(GCF) of 975, 39, 42 = 3

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

Step 2: Then multiply all the prime factors GCF(975, 39, 42) = 3.