Greatest Common Factor of 23, 20, 165

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

• Greatest Common Factor of 23, 20, 165 by common division method
• Greatest Common Factor of 23, 20, 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

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 23,20,165 . The biggest common factor number is the GCF number.
So the greatest common factor 23,20,165 is 1.

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

• GCF of 21, 83, 788
• GCF of 54, 65, 418
• GCF of 41, 98, 719
• GCF of 26, 82, 363
• GCF of 11, 55, 279

1. What is the GCF of 23, 20, 165?

Answer: GCF of 23, 20, 165 is 1.

2. How to Find the GCF of 23, 20, 165

Answer: Greatest Common Factor(GCF) of 23, 20, 165 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 20, 165) = 1.