Greatest Common Factor of 42, 5, 81, 60

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

• Greatest Common Factor of 42, 5, 81, 60 by common division method
• Greatest Common Factor of 42, 5, 81, 60 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 5

List of positive integer factors of 5 that divides 5 without a remainder.

1,5

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Greatest Common Factor

We found the factors 42,5,81,60 . The biggest common factor number is the GCF number.
So the greatest common factor 42,5,81,60 is 1.

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

• GCF of 40, 5, 88, 24
• GCF of 38, 4, 49, 72
• GCF of 23, 3, 72, 37
• GCF of 18, 1, 61, 98
• GCF of 22, 2, 45, 99

1. What is the GCF of 42, 5, 81, 60?

Answer: GCF of 42, 5, 81, 60 is 1.

2. How to Find the GCF of 42, 5, 81, 60

Answer: Greatest Common Factor(GCF) of 42, 5, 81, 60 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 5, 81, 60) = 1.