Greatest Common Factor of 21, 516, 231

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

• Greatest Common Factor of 21, 516, 231 by common division method
• Greatest Common Factor of 21, 516, 231 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 516

List of positive integer factors of 516 that divides 516 without a remainder.

1,2,3,4,6,12,43,86,129,172,258,516

Factors of 231

List of positive integer factors of 231 that divides 231 without a remainder.

1,3,7,11,21,33,77,231

Greatest Common Factor

We found the factors 21,516,231 . The biggest common factor number is the GCF number.
So the greatest common factor 21,516,231 is 3.

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

• GCF of 62, 378, 632
• GCF of 27, 984, 773
• GCF of 84, 443, 218
• GCF of 72, 957, 476
• GCF of 33, 961, 920

1. What is the GCF of 21, 516, 231?

Answer: GCF of 21, 516, 231 is 3.

2. How to Find the GCF of 21, 516, 231

Answer: Greatest Common Factor(GCF) of 21, 516, 231 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 516, 231) = 3.