Greatest Common Factor of 45, 21, 64, 630

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

• Greatest Common Factor of 45, 21, 64, 630 by common division method
• Greatest Common Factor of 45, 21, 64, 630 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 45

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

1,3,5,9,15,45

Factors of 21

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

1,3,7,21

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 630

List of positive integer factors of 630 that divides 630 without a remainder.

1,2,3,5,6,7,9,10,14,15,18,21,30,35,42,45,63,70,90,105,126,210,315,630

Greatest Common Factor

We found the factors 45,21,64,630 . The biggest common factor number is the GCF number.
So the greatest common factor 45,21,64,630 is 1.

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

• GCF of 33, 12, 72, 810
• GCF of 19, 58, 39, 649
• GCF of 59, 13, 53, 165
• GCF of 15, 36, 49, 657
• GCF of 98, 25, 20, 522

1. What is the GCF of 45, 21, 64, 630?

Answer: GCF of 45, 21, 64, 630 is 1.

2. How to Find the GCF of 45, 21, 64, 630

Answer: Greatest Common Factor(GCF) of 45, 21, 64, 630 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 21, 64, 630) = 1.