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Greatest Common Factor of 28, 42, 49

GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 28, 42, 49 i.e. 7 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 28, 42, 49 is 7.

GCF(28, 42, 49) = 7

GCF of 28, 42, 49

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

GCF of:

Greatest Common Factor (GCF) of 28,42,49 By Common Division

7 28, 42, 49
4, 6, 7

∴ So the GCF of the given numbers is 7 = 7

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

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Greatest Common Factor

We found the factors 28,42,49 . The biggest common factor number is the GCF number.
So the greatest common factor 28,42,49 is 7.

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 28, 42, 49

1. What is the GCF of 28, 42, 49?

Answer: GCF of 28, 42, 49 is 7.

2. How to Find the GCF of 28, 42, 49

Answer: Greatest Common Factor(GCF) of 28, 42, 49 = 7

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

Step 2: Then multiply all the prime factors GCF(28, 42, 49) = 7.