Greatest Common Factor of 42, 54, 49, 47

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

• Greatest Common Factor of 42, 54, 49, 47 by common division method
• Greatest Common Factor of 42, 54, 49, 47 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 42

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

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

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 49

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

1,7,49

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Greatest Common Factor

We found the factors 42,54,49,47 . The biggest common factor number is the GCF number.
So the greatest common factor 42,54,49,47 is 1.

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

• GCF of 55, 83, 37, 72
• GCF of 74, 24, 18, 92
• GCF of 61, 88, 12, 60
• GCF of 76, 47, 89, 14
• GCF of 87, 94, 29, 26

1. What is the GCF of 42, 54, 49, 47?

Answer: GCF of 42, 54, 49, 47 is 1.

2. How to Find the GCF of 42, 54, 49, 47

Answer: Greatest Common Factor(GCF) of 42, 54, 49, 47 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 54, 49, 47) = 1.