Greatest Common Factor of 23, 21, 11, 54

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

• Greatest Common Factor of 23, 21, 11, 54 by common division method
• Greatest Common Factor of 23, 21, 11, 54 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Greatest Common Factor

We found the factors 23,21,11,54 . The biggest common factor number is the GCF number.
So the greatest common factor 23,21,11,54 is 1.

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

• GCF of 31, 75, 82, 40
• GCF of 15, 36, 56, 97
• GCF of 20, 82, 99, 20
• GCF of 38, 48, 46, 81
• GCF of 73, 88, 74, 42

1. What is the GCF of 23, 21, 11, 54?

Answer: GCF of 23, 21, 11, 54 is 1.

2. How to Find the GCF of 23, 21, 11, 54

Answer: Greatest Common Factor(GCF) of 23, 21, 11, 54 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 21, 11, 54) = 1.