Greatest Common Factor of 720, 780, 646

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

• Greatest Common Factor of 720, 780, 646 by common division method
• Greatest Common Factor of 720, 780, 646 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 = 2

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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Greatest Common Factor

We found the factors 720,780,646 . The biggest common factor number is the GCF number.
So the greatest common factor 720,780,646 is 2.

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

• GCF of 943, 381, 428
• GCF of 328, 257, 493
• GCF of 167, 863, 923
• GCF of 123, 465, 501
• GCF of 736, 787, 365

1. What is the GCF of 720, 780, 646?

Answer: GCF of 720, 780, 646 is 2.

2. How to Find the GCF of 720, 780, 646

Answer: Greatest Common Factor(GCF) of 720, 780, 646 = 2

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

Step 2: Then multiply all the prime factors GCF(720, 780, 646) = 2.