Greatest Common Factor of 24, 30, 21, 309

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

• Greatest Common Factor of 24, 30, 21, 309 by common division method
• Greatest Common Factor of 24, 30, 21, 309 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 24

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

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

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 21

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

1,3,7,21

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Greatest Common Factor

We found the factors 24,30,21,309 . The biggest common factor number is the GCF number.
So the greatest common factor 24,30,21,309 is 3.

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

• GCF of 18, 67, 69, 560
• GCF of 34, 32, 62, 903
• GCF of 83, 87, 53, 817
• GCF of 77, 63, 38, 666
• GCF of 27, 20, 62, 692

1. What is the GCF of 24, 30, 21, 309?

Answer: GCF of 24, 30, 21, 309 is 3.

2. How to Find the GCF of 24, 30, 21, 309

Answer: Greatest Common Factor(GCF) of 24, 30, 21, 309 = 3

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

Step 2: Then multiply all the prime factors GCF(24, 30, 21, 309) = 3.