Greatest Common Factor of 42, 17, 21, 241

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

• Greatest Common Factor of 42, 17, 21, 241 by common division method
• Greatest Common Factor of 42, 17, 21, 241 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 21

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

1,3,7,21

Factors of 241

List of positive integer factors of 241 that divides 241 without a remainder.

1,241

Greatest Common Factor

We found the factors 42,17,21,241 . The biggest common factor number is the GCF number.
So the greatest common factor 42,17,21,241 is 1.

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

• GCF of 57, 31, 37, 816
• GCF of 90, 32, 34, 509
• GCF of 88, 37, 94, 113
• GCF of 54, 15, 96, 508
• GCF of 13, 97, 98, 893

1. What is the GCF of 42, 17, 21, 241?

Answer: GCF of 42, 17, 21, 241 is 1.

2. How to Find the GCF of 42, 17, 21, 241

Answer: Greatest Common Factor(GCF) of 42, 17, 21, 241 = 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, 21, 241) = 1.