Greatest Common Factor of 42, 20, 21, 335

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

• Greatest Common Factor of 42, 20, 21, 335 by common division method
• Greatest Common Factor of 42, 20, 21, 335 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 21

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

1,3,7,21

Factors of 335

List of positive integer factors of 335 that divides 335 without a remainder.

1,5,67,335

Greatest Common Factor

We found the factors 42,20,21,335 . The biggest common factor number is the GCF number.
So the greatest common factor 42,20,21,335 is 1.

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

• GCF of 62, 81, 78, 390
• GCF of 88, 27, 17, 875
• GCF of 26, 50, 37, 379
• GCF of 90, 33, 48, 454
• GCF of 24, 20, 90, 800

1. What is the GCF of 42, 20, 21, 335?

Answer: GCF of 42, 20, 21, 335 is 1.

2. How to Find the GCF of 42, 20, 21, 335

Answer: Greatest Common Factor(GCF) of 42, 20, 21, 335 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 20, 21, 335) = 1.