Greatest Common Factor of 921, 210, 21

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

• Greatest Common Factor of 921, 210, 21 by common division method
• Greatest Common Factor of 921, 210, 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 921

List of positive integer factors of 921 that divides 921 without a remainder.

1,3,307,921

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 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 921,210,21 . The biggest common factor number is the GCF number.
So the greatest common factor 921,210,21 is 3.

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

• GCF of 135, 681, 53
• GCF of 784, 834, 40
• GCF of 884, 578, 33
• GCF of 407, 272, 49
• GCF of 438, 600, 25

1. What is the GCF of 921, 210, 21?

Answer: GCF of 921, 210, 21 is 3.

2. How to Find the GCF of 921, 210, 21

Answer: Greatest Common Factor(GCF) of 921, 210, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(921, 210, 21) = 3.