Greatest Common Factor of 18, 38, 17, 215

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

• Greatest Common Factor of 18, 38, 17, 215 by common division method
• Greatest Common Factor of 18, 38, 17, 215 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 215

List of positive integer factors of 215 that divides 215 without a remainder.

1,5,43,215

Greatest Common Factor

We found the factors 18,38,17,215 . The biggest common factor number is the GCF number.
So the greatest common factor 18,38,17,215 is 1.

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

• GCF of 15, 84, 57, 324
• GCF of 90, 86, 45, 646
• GCF of 43, 50, 50, 904
• GCF of 72, 14, 27, 653
• GCF of 46, 95, 34, 653

1. What is the GCF of 18, 38, 17, 215?

Answer: GCF of 18, 38, 17, 215 is 1.

2. How to Find the GCF of 18, 38, 17, 215

Answer: Greatest Common Factor(GCF) of 18, 38, 17, 215 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 38, 17, 215) = 1.