Greatest Common Factor of 42, 82, 56, 91

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

• Greatest Common Factor of 42, 82, 56, 91 by common division method
• Greatest Common Factor of 42, 82, 56, 91 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 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Greatest Common Factor

We found the factors 42,82,56,91 . The biggest common factor number is the GCF number.
So the greatest common factor 42,82,56,91 is 1.

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

• GCF of 63, 75, 43, 32
• GCF of 21, 53, 47, 36
• GCF of 77, 28, 37, 64
• GCF of 61, 76, 31, 91
• GCF of 52, 79, 18, 97

1. What is the GCF of 42, 82, 56, 91?

Answer: GCF of 42, 82, 56, 91 is 1.

2. How to Find the GCF of 42, 82, 56, 91

Answer: Greatest Common Factor(GCF) of 42, 82, 56, 91 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 82, 56, 91) = 1.