Greatest Common Factor of 21, 24, 27

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

• Greatest Common Factor of 21, 24, 27 by common division method
• Greatest Common Factor of 21, 24, 27 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 21

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

1,3,7,21

Factors of 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Greatest Common Factor

We found the factors 21,24,27 . The biggest common factor number is the GCF number.
So the greatest common factor 21,24,27 is 3.

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

• GCF of 79, 39, 15
• GCF of 69, 41, 33
• GCF of 16, 25, 59
• GCF of 37, 77, 99
• GCF of 65, 87, 13

1. What is the GCF of 21, 24, 27?

Answer: GCF of 21, 24, 27 is 3.

2. How to Find the GCF of 21, 24, 27

Answer: Greatest Common Factor(GCF) of 21, 24, 27 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 24, 27) = 3.