Greatest Common Factor of 108, 624, 21

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

• Greatest Common Factor of 108, 624, 21 by common division method
• Greatest Common Factor of 108, 624, 21 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 108

List of positive integer factors of 108 that divides 108 without a remainder.

1,2,3,4,6,9,12,18,27,36,54,108

Factors of 624

List of positive integer factors of 624 that divides 624 without a remainder.

1,2,3,4,6,8,12,13,16,24,26,39,48,52,78,104,156,208,312,624

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 108,624,21 . The biggest common factor number is the GCF number.
So the greatest common factor 108,624,21 is 3.

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

• GCF of 597, 265, 61
• GCF of 398, 350, 55
• GCF of 576, 785, 93
• GCF of 679, 668, 99
• GCF of 958, 423, 37

1. What is the GCF of 108, 624, 21?

Answer: GCF of 108, 624, 21 is 3.

2. How to Find the GCF of 108, 624, 21

Answer: Greatest Common Factor(GCF) of 108, 624, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(108, 624, 21) = 3.