Greatest Common Factor of 23, 20, 71, 149

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

• Greatest Common Factor of 23, 20, 71, 149 by common division method
• Greatest Common Factor of 23, 20, 71, 149 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 71

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

1,71

Factors of 149

List of positive integer factors of 149 that divides 149 without a remainder.

1,149

Greatest Common Factor

We found the factors 23,20,71,149 . The biggest common factor number is the GCF number.
So the greatest common factor 23,20,71,149 is 1.

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

• GCF of 19, 28, 77, 560
• GCF of 72, 11, 30, 764
• GCF of 98, 85, 73, 977
• GCF of 19, 84, 38, 877
• GCF of 95, 26, 31, 961

1. What is the GCF of 23, 20, 71, 149?

Answer: GCF of 23, 20, 71, 149 is 1.

2. How to Find the GCF of 23, 20, 71, 149

Answer: Greatest Common Factor(GCF) of 23, 20, 71, 149 = 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, 71, 149) = 1.