Greatest Common Factor of 80, 28, 56, 646

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

• Greatest Common Factor of 80, 28, 56, 646 by common division method
• Greatest Common Factor of 80, 28, 56, 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

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 80,28,56,646 . The biggest common factor number is the GCF number.
So the greatest common factor 80,28,56,646 is 2.

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

• GCF of 79, 73, 13, 918
• GCF of 50, 34, 96, 199
• GCF of 78, 33, 64, 781
• GCF of 19, 83, 48, 299
• GCF of 33, 19, 38, 462

1. What is the GCF of 80, 28, 56, 646?

Answer: GCF of 80, 28, 56, 646 is 2.

2. How to Find the GCF of 80, 28, 56, 646

Answer: Greatest Common Factor(GCF) of 80, 28, 56, 646 = 2

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

Step 2: Then multiply all the prime factors GCF(80, 28, 56, 646) = 2.