Greatest Common Factor of 18, 69, 71, 1, 23

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

• Greatest Common Factor of 18, 69, 71, 1, 23 by common division method
• Greatest Common Factor of 18, 69, 71, 1, 23 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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 1

List of positive integer factors of 1 that divides 1 without a remainder.

1

Factors of 23

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

1,23

Greatest Common Factor

We found the factors 18,69,71,1,23 . The biggest common factor number is the GCF number.
So the greatest common factor 18,69,71,1,23 is 1.

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

• GCF of 13, 30, 34, 4, 27
• GCF of 58, 93, 79, 5, 63
• GCF of 20, 66, 16, 2, 65
• GCF of 92, 20, 59, 7, 40
• GCF of 84, 76, 20, 4, 31

1. What is the GCF of 18, 69, 71, 1, 23?

Answer: GCF of 18, 69, 71, 1, 23 is 1.

2. How to Find the GCF of 18, 69, 71, 1, 23

Answer: Greatest Common Factor(GCF) of 18, 69, 71, 1, 23 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 69, 71, 1, 23) = 1.