Greatest Common Factor of 42, 46, 34, 21

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

• Greatest Common Factor of 42, 46, 34, 21 by common division method
• Greatest Common Factor of 42, 46, 34, 21 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 46

List of positive integer factors of 46 that divides 46 without a remainder.

1,2,23,46

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Greatest Common Factor

We found the factors 42,46,34,21 . The biggest common factor number is the GCF number.
So the greatest common factor 42,46,34,21 is 1.

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

• GCF of 91, 32, 70, 68
• GCF of 33, 52, 74, 65
• GCF of 84, 50, 72, 70
• GCF of 33, 42, 77, 23
• GCF of 75, 30, 28, 65

1. What is the GCF of 42, 46, 34, 21?

Answer: GCF of 42, 46, 34, 21 is 1.

2. How to Find the GCF of 42, 46, 34, 21

Answer: Greatest Common Factor(GCF) of 42, 46, 34, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 46, 34, 21) = 1.