Greatest Common Factor of 42, 391, 549

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

• Greatest Common Factor of 42, 391, 549 by common division method
• Greatest Common Factor of 42, 391, 549 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 391

List of positive integer factors of 391 that divides 391 without a remainder.

1,17,23,391

Factors of 549

List of positive integer factors of 549 that divides 549 without a remainder.

1,3,9,61,183,549

Greatest Common Factor

We found the factors 42,391,549 . The biggest common factor number is the GCF number.
So the greatest common factor 42,391,549 is 1.

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

• GCF of 16, 807, 723
• GCF of 74, 951, 966
• GCF of 73, 169, 758
• GCF of 64, 207, 328
• GCF of 33, 426, 283

1. What is the GCF of 42, 391, 549?

Answer: GCF of 42, 391, 549 is 1.

2. How to Find the GCF of 42, 391, 549

Answer: Greatest Common Factor(GCF) of 42, 391, 549 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 391, 549) = 1.