Greatest Common Factor of 720, 320, 660

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

• Greatest Common Factor of 720, 320, 660 by common division method
• Greatest Common Factor of 720, 320, 660 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 x 2 x 5 = 20

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

Factors of 320

List of positive integer factors of 320 that divides 320 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,160,320

Factors of 660

List of positive integer factors of 660 that divides 660 without a remainder.

1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660

Greatest Common Factor

We found the factors 720,320,660 . The biggest common factor number is the GCF number.
So the greatest common factor 720,320,660 is 20.

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

• GCF of 235, 292, 328
• GCF of 196, 405, 337
• GCF of 349, 912, 831
• GCF of 515, 401, 947
• GCF of 208, 115, 177

1. What is the GCF of 720, 320, 660?

Answer: GCF of 720, 320, 660 is 20.

2. How to Find the GCF of 720, 320, 660

Answer: Greatest Common Factor(GCF) of 720, 320, 660 = 20

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

Step 2: Then multiply all the prime factors GCF(720, 320, 660) = 20.