Greatest Common Factor of 645, 189, 720

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

• Greatest Common Factor of 645, 189, 720 by common division method
• Greatest Common Factor of 645, 189, 720 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 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Factors of 720

List of positive integer factors of 720 that divides 720 without a remainder.

1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720

Greatest Common Factor

We found the factors 645,189,720 . The biggest common factor number is the GCF number.
So the greatest common factor 645,189,720 is 3.

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

• GCF of 968, 904, 515
• GCF of 411, 386, 448
• GCF of 158, 576, 669
• GCF of 516, 679, 514
• GCF of 283, 347, 365

1. What is the GCF of 645, 189, 720?

Answer: GCF of 645, 189, 720 is 3.

2. How to Find the GCF of 645, 189, 720

Answer: Greatest Common Factor(GCF) of 645, 189, 720 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 189, 720) = 3.