Greatest Common Factor of 21, 210, 786

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

• Greatest Common Factor of 21, 210, 786 by common division method
• Greatest Common Factor of 21, 210, 786 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 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 786

List of positive integer factors of 786 that divides 786 without a remainder.

1,2,3,6,131,262,393,786

Greatest Common Factor

We found the factors 21,210,786 . The biggest common factor number is the GCF number.
So the greatest common factor 21,210,786 is 3.

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

• GCF of 81, 714, 801
• GCF of 69, 592, 960
• GCF of 16, 530, 260
• GCF of 86, 164, 838
• GCF of 87, 945, 266

1. What is the GCF of 21, 210, 786?

Answer: GCF of 21, 210, 786 is 3.

2. How to Find the GCF of 21, 210, 786

Answer: Greatest Common Factor(GCF) of 21, 210, 786 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 210, 786) = 3.