Greatest Common Factor of 210, 261, 21

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

• Greatest Common Factor of 210, 261, 21 by common division method
• Greatest Common Factor of 210, 261, 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 210

List of positive integer factors of 210 that divides 210 without a remainder.

1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210

Factors of 261

List of positive integer factors of 261 that divides 261 without a remainder.

1,3,9,29,87,261

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 210,261,21 . The biggest common factor number is the GCF number.
So the greatest common factor 210,261,21 is 3.

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

• GCF of 743, 914, 68
• GCF of 131, 209, 32
• GCF of 542, 381, 44
• GCF of 281, 264, 97
• GCF of 128, 735, 16

1. What is the GCF of 210, 261, 21?

Answer: GCF of 210, 261, 21 is 3.

2. How to Find the GCF of 210, 261, 21

Answer: Greatest Common Factor(GCF) of 210, 261, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(210, 261, 21) = 3.