Greatest Common Factor of 99, 21, 31, 54

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

• Greatest Common Factor of 99, 21, 31, 54 by common division method
• Greatest Common Factor of 99, 21, 31, 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 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 21

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

1,3,7,21

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

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 99,21,31,54 . The biggest common factor number is the GCF number.
So the greatest common factor 99,21,31,54 is 1.

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

• GCF of 47, 10, 66, 23
• GCF of 28, 83, 84, 83
• GCF of 21, 74, 92, 37
• GCF of 84, 33, 49, 49
• GCF of 48, 57, 23, 60

1. What is the GCF of 99, 21, 31, 54?

Answer: GCF of 99, 21, 31, 54 is 1.

2. How to Find the GCF of 99, 21, 31, 54

Answer: Greatest Common Factor(GCF) of 99, 21, 31, 54 = 1

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

Step 2: Then multiply all the prime factors GCF(99, 21, 31, 54) = 1.