Greatest Common Factor of 21, 156, 825

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

• Greatest Common Factor of 21, 156, 825 by common division method
• Greatest Common Factor of 21, 156, 825 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 156

List of positive integer factors of 156 that divides 156 without a remainder.

1,2,3,4,6,12,13,26,39,52,78,156

Factors of 825

List of positive integer factors of 825 that divides 825 without a remainder.

1,3,5,11,15,25,33,55,75,165,275,825

Greatest Common Factor

We found the factors 21,156,825 . The biggest common factor number is the GCF number.
So the greatest common factor 21,156,825 is 3.

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

• GCF of 19, 819, 581
• GCF of 82, 809, 102
• GCF of 35, 537, 746
• GCF of 72, 962, 561
• GCF of 85, 226, 834

1. What is the GCF of 21, 156, 825?

Answer: GCF of 21, 156, 825 is 3.

2. How to Find the GCF of 21, 156, 825

Answer: Greatest Common Factor(GCF) of 21, 156, 825 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 156, 825) = 3.