Greatest Common Factor of 30, 20, 45, 63

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

• Greatest Common Factor of 30, 20, 45, 63 by common division method
• Greatest Common Factor of 30, 20, 45, 63 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 63

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

1,3,7,9,21,63

Greatest Common Factor

We found the factors 30,20,45,63 . The biggest common factor number is the GCF number.
So the greatest common factor 30,20,45,63 is 1.

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

• GCF of 62, 52, 79, 93
• GCF of 37, 51, 15, 59
• GCF of 95, 64, 79, 44
• GCF of 73, 50, 89, 72
• GCF of 99, 67, 26, 19

1. What is the GCF of 30, 20, 45, 63?

Answer: GCF of 30, 20, 45, 63 is 1.

2. How to Find the GCF of 30, 20, 45, 63

Answer: Greatest Common Factor(GCF) of 30, 20, 45, 63 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 20, 45, 63) = 1.