Greatest Common Factor of 720, 684, 420

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

• Greatest Common Factor of 720, 684, 420 by common division method
• Greatest Common Factor of 720, 684, 420 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 3 = 12

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 684

List of positive integer factors of 684 that divides 684 without a remainder.

1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 720,684,420 . The biggest common factor number is the GCF number.
So the greatest common factor 720,684,420 is 12.

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

• GCF of 664, 449, 661
• GCF of 470, 950, 505
• GCF of 731, 125, 776
• GCF of 974, 317, 570
• GCF of 111, 271, 663

1. What is the GCF of 720, 684, 420?

Answer: GCF of 720, 684, 420 is 12.

2. How to Find the GCF of 720, 684, 420

Answer: Greatest Common Factor(GCF) of 720, 684, 420 = 12

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

Step 2: Then multiply all the prime factors GCF(720, 684, 420) = 12.