Greatest Common Factor of 63, 9, 30, 21

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

• Greatest Common Factor of 63, 9, 30, 21 by common division method
• Greatest Common Factor of 63, 9, 30, 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 63

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

1,3,7,9,21,63

Factors of 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

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 63,9,30,21 . The biggest common factor number is the GCF number.
So the greatest common factor 63,9,30,21 is 3.

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

• GCF of 96, 1, 62, 69
• GCF of 26, 7, 12, 65
• GCF of 89, 6, 66, 72
• GCF of 37, 1, 30, 65
• GCF of 19, 4, 65, 31

1. What is the GCF of 63, 9, 30, 21?

Answer: GCF of 63, 9, 30, 21 is 3.

2. How to Find the GCF of 63, 9, 30, 21

Answer: Greatest Common Factor(GCF) of 63, 9, 30, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(63, 9, 30, 21) = 3.