Greatest Common Factor of 42, 86, 549

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

• Greatest Common Factor of 42, 86, 549 by common division method
• Greatest Common Factor of 42, 86, 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 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

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 42,86,549 . The biggest common factor number is the GCF number.
So the greatest common factor 42,86,549 is 1.

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

• GCF of 47, 85, 691
• GCF of 90, 56, 220
• GCF of 75, 41, 649
• GCF of 73, 98, 128
• GCF of 77, 33, 491

1. What is the GCF of 42, 86, 549?

Answer: GCF of 42, 86, 549 is 1.

2. How to Find the GCF of 42, 86, 549

Answer: Greatest Common Factor(GCF) of 42, 86, 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, 86, 549) = 1.