Greatest Common Factor of 42, 21, 82, 417

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

• Greatest Common Factor of 42, 21, 82, 417 by common division method
• Greatest Common Factor of 42, 21, 82, 417 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 21

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

1,3,7,21

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 417

List of positive integer factors of 417 that divides 417 without a remainder.

1,3,139,417

Greatest Common Factor

We found the factors 42,21,82,417 . The biggest common factor number is the GCF number.
So the greatest common factor 42,21,82,417 is 1.

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

• GCF of 28, 28, 11, 910
• GCF of 49, 58, 60, 822
• GCF of 98, 93, 73, 470
• GCF of 59, 81, 51, 261
• GCF of 22, 58, 62, 226

1. What is the GCF of 42, 21, 82, 417?

Answer: GCF of 42, 21, 82, 417 is 1.

2. How to Find the GCF of 42, 21, 82, 417

Answer: Greatest Common Factor(GCF) of 42, 21, 82, 417 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 21, 82, 417) = 1.