Greatest Common Factor of 522, 642, 21

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

• Greatest Common Factor of 522, 642, 21 by common division method
• Greatest Common Factor of 522, 642, 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 522

List of positive integer factors of 522 that divides 522 without a remainder.

1,2,3,6,9,18,29,58,87,174,261,522

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

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 522,642,21 . The biggest common factor number is the GCF number.
So the greatest common factor 522,642,21 is 3.

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

• GCF of 526, 421, 38
• GCF of 581, 295, 47
• GCF of 332, 496, 10
• GCF of 184, 675, 71
• GCF of 968, 404, 21

1. What is the GCF of 522, 642, 21?

Answer: GCF of 522, 642, 21 is 3.

2. How to Find the GCF of 522, 642, 21

Answer: Greatest Common Factor(GCF) of 522, 642, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(522, 642, 21) = 3.