Greatest Common Factor of 18, 171, 217

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

• Greatest Common Factor of 18, 171, 217 by common division method
• Greatest Common Factor of 18, 171, 217 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 171

List of positive integer factors of 171 that divides 171 without a remainder.

1,3,9,19,57,171

Factors of 217

List of positive integer factors of 217 that divides 217 without a remainder.

1,7,31,217

Greatest Common Factor

We found the factors 18,171,217 . The biggest common factor number is the GCF number.
So the greatest common factor 18,171,217 is 1.

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

• GCF of 94, 299, 401
• GCF of 62, 905, 192
• GCF of 29, 987, 585
• GCF of 71, 997, 816
• GCF of 68, 595, 171

1. What is the GCF of 18, 171, 217?

Answer: GCF of 18, 171, 217 is 1.

2. How to Find the GCF of 18, 171, 217

Answer: Greatest Common Factor(GCF) of 18, 171, 217 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 171, 217) = 1.