Greatest Common Factor of 21, 624, 780

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

• Greatest Common Factor of 21, 624, 780 by common division method
• Greatest Common Factor of 21, 624, 780 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 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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 21,624,780 . The biggest common factor number is the GCF number.
So the greatest common factor 21,624,780 is 3.

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

• GCF of 68, 228, 191
• GCF of 25, 221, 717
• GCF of 59, 121, 586
• GCF of 34, 668, 770
• GCF of 51, 848, 157

1. What is the GCF of 21, 624, 780?

Answer: GCF of 21, 624, 780 is 3.

2. How to Find the GCF of 21, 624, 780

Answer: Greatest Common Factor(GCF) of 21, 624, 780 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 624, 780) = 3.