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Greatest Common Factor of 42, 63, 147

GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 42, 63, 147 i.e. 21 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 42, 63, 147 is 21.

GCF(42, 63, 147) = 21

GCF of 42, 63, 147

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

GCF of:

Greatest Common Factor (GCF) of 42,63,147 By Common Division

3 42, 63, 147
7 14, 21, 49
2, 3, 7

∴ So the GCF of the given numbers is 3 x 7 = 21

Greatest Common Factor (GCF) By Matching Biggest Common Factor Method

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 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 147

List of positive integer factors of 147 that divides 147 without a remainder.

1,3,7,21,49,147

Greatest Common Factor

We found the factors 42,63,147 . The biggest common factor number is the GCF number.
So the greatest common factor 42,63,147 is 21.

GCF of two or more Numbers Calculation Examples

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

Frequently Asked Questions on GCF of 42, 63, 147

1. What is the GCF of 42, 63, 147?

Answer: GCF of 42, 63, 147 is 21.

2. How to Find the GCF of 42, 63, 147

Answer: Greatest Common Factor(GCF) of 42, 63, 147 = 21

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

Step 2: Then multiply all the prime factors GCF(42, 63, 147) = 21.