Greatest Common Factor of 17, 21, 12, 166

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

• Greatest Common Factor of 17, 21, 12, 166 by common division method
• Greatest Common Factor of 17, 21, 12, 166 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 17

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

1,17

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 166

List of positive integer factors of 166 that divides 166 without a remainder.

1,2,83,166

Greatest Common Factor

We found the factors 17,21,12,166 . The biggest common factor number is the GCF number.
So the greatest common factor 17,21,12,166 is 1.

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

• GCF of 32, 54, 37, 979
• GCF of 89, 76, 53, 624
• GCF of 45, 51, 73, 419
• GCF of 97, 74, 65, 730
• GCF of 44, 16, 86, 576

1. What is the GCF of 17, 21, 12, 166?

Answer: GCF of 17, 21, 12, 166 is 1.

2. How to Find the GCF of 17, 21, 12, 166

Answer: Greatest Common Factor(GCF) of 17, 21, 12, 166 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 21, 12, 166) = 1.