Greatest Common Factor of 18, 991, 165

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

• Greatest Common Factor of 18, 991, 165 by common division method
• Greatest Common Factor of 18, 991, 165 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 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 165

List of positive integer factors of 165 that divides 165 without a remainder.

1,3,5,11,15,33,55,165

Greatest Common Factor

We found the factors 18,991,165 . The biggest common factor number is the GCF number.
So the greatest common factor 18,991,165 is 1.

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

• GCF of 87, 690, 392
• GCF of 94, 901, 793
• GCF of 95, 357, 669
• GCF of 65, 790, 303
• GCF of 12, 278, 117

1. What is the GCF of 18, 991, 165?

Answer: GCF of 18, 991, 165 is 1.

2. How to Find the GCF of 18, 991, 165

Answer: Greatest Common Factor(GCF) of 18, 991, 165 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 991, 165) = 1.