Greatest Common Factor of 63, 84, 21, 531

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

• Greatest Common Factor of 63, 84, 21, 531 by common division method
• Greatest Common Factor of 63, 84, 21, 531 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 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 531

List of positive integer factors of 531 that divides 531 without a remainder.

1,3,9,59,177,531

Greatest Common Factor

We found the factors 63,84,21,531 . The biggest common factor number is the GCF number.
So the greatest common factor 63,84,21,531 is 3.

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

• GCF of 33, 19, 81, 890
• GCF of 34, 63, 70, 696
• GCF of 49, 98, 99, 662
• GCF of 52, 90, 82, 704
• GCF of 17, 93, 93, 513

1. What is the GCF of 63, 84, 21, 531?

Answer: GCF of 63, 84, 21, 531 is 3.

2. How to Find the GCF of 63, 84, 21, 531

Answer: Greatest Common Factor(GCF) of 63, 84, 21, 531 = 3

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

Step 2: Then multiply all the prime factors GCF(63, 84, 21, 531) = 3.