Greatest Common Factor of 66, 18, 397

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

• Greatest Common Factor of 66, 18, 397 by common division method
• Greatest Common Factor of 66, 18, 397 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 18

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

1,2,3,6,9,18

Factors of 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Greatest Common Factor

We found the factors 66,18,397 . The biggest common factor number is the GCF number.
So the greatest common factor 66,18,397 is 1.

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

• GCF of 54, 59, 741
• GCF of 32, 66, 328
• GCF of 45, 55, 792
• GCF of 67, 53, 116
• GCF of 71, 96, 228

1. What is the GCF of 66, 18, 397?

Answer: GCF of 66, 18, 397 is 1.

2. How to Find the GCF of 66, 18, 397

Answer: Greatest Common Factor(GCF) of 66, 18, 397 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 18, 397) = 1.