Greatest Common Factor of 42, 66, 22, 19, 31

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

• Greatest Common Factor of 42, 66, 22, 19, 31 by common division method
• Greatest Common Factor of 42, 66, 22, 19, 31 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Greatest Common Factor

We found the factors 42,66,22,19,31 . The biggest common factor number is the GCF number.
So the greatest common factor 42,66,22,19,31 is 1.

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

• GCF of 44, 93, 89, 88, 50
• GCF of 46, 14, 28, 55, 44
• GCF of 97, 43, 14, 73, 75
• GCF of 89, 37, 41, 22, 66
• GCF of 15, 84, 54, 36, 23

1. What is the GCF of 42, 66, 22, 19, 31?

Answer: GCF of 42, 66, 22, 19, 31 is 1.

2. How to Find the GCF of 42, 66, 22, 19, 31

Answer: Greatest Common Factor(GCF) of 42, 66, 22, 19, 31 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 66, 22, 19, 31) = 1.