Greatest Common Factor of 42, 17, 920

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

• Greatest Common Factor of 42, 17, 920 by common division method
• Greatest Common Factor of 42, 17, 920 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 920

List of positive integer factors of 920 that divides 920 without a remainder.

1,2,4,5,8,10,20,23,40,46,92,115,184,230,460,920

Greatest Common Factor

We found the factors 42,17,920 . The biggest common factor number is the GCF number.
So the greatest common factor 42,17,920 is 1.

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

• GCF of 22, 71, 943
• GCF of 94, 38, 309
• GCF of 47, 52, 743
• GCF of 14, 48, 401
• GCF of 32, 54, 885

1. What is the GCF of 42, 17, 920?

Answer: GCF of 42, 17, 920 is 1.

2. How to Find the GCF of 42, 17, 920

Answer: Greatest Common Factor(GCF) of 42, 17, 920 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 17, 920) = 1.