Greatest Common Factor of 18, 70, 42, 539

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

• Greatest Common Factor of 18, 70, 42, 539 by common division method
• Greatest Common Factor of 18, 70, 42, 539 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

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 539

List of positive integer factors of 539 that divides 539 without a remainder.

1,7,11,49,77,539

Greatest Common Factor

We found the factors 18,70,42,539 . The biggest common factor number is the GCF number.
So the greatest common factor 18,70,42,539 is 1.

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

• GCF of 77, 69, 46, 105
• GCF of 62, 12, 27, 601
• GCF of 90, 72, 91, 221
• GCF of 99, 16, 86, 603
• GCF of 15, 56, 28, 456

1. What is the GCF of 18, 70, 42, 539?

Answer: GCF of 18, 70, 42, 539 is 1.

2. How to Find the GCF of 18, 70, 42, 539

Answer: Greatest Common Factor(GCF) of 18, 70, 42, 539 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 70, 42, 539) = 1.