Greatest Common Factor of 18, 47, 204, 405

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

• Greatest Common Factor of 18, 47, 204, 405 by common division method
• Greatest Common Factor of 18, 47, 204, 405 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 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 204

List of positive integer factors of 204 that divides 204 without a remainder.

1,2,3,4,6,12,17,34,51,68,102,204

Factors of 405

List of positive integer factors of 405 that divides 405 without a remainder.

1,3,5,9,15,27,45,81,135,405

Greatest Common Factor

We found the factors 18,47,204,405 . The biggest common factor number is the GCF number.
So the greatest common factor 18,47,204,405 is 1.

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

• GCF of 56, 79, 335, 664
• GCF of 86, 30, 745, 244
• GCF of 13, 49, 891, 603
• GCF of 83, 82, 167, 797
• GCF of 47, 32, 942, 567

1. What is the GCF of 18, 47, 204, 405?

Answer: GCF of 18, 47, 204, 405 is 1.

2. How to Find the GCF of 18, 47, 204, 405

Answer: Greatest Common Factor(GCF) of 18, 47, 204, 405 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 47, 204, 405) = 1.