Greatest Common Factor of 686, 128, 18

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

• Greatest Common Factor of 686, 128, 18 by common division method
• Greatest Common Factor of 686, 128, 18 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 686

List of positive integer factors of 686 that divides 686 without a remainder.

1,2,7,14,49,98,343,686

Factors of 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 686,128,18 . The biggest common factor number is the GCF number.
So the greatest common factor 686,128,18 is 2.

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

• GCF of 155, 622, 32
• GCF of 113, 729, 62
• GCF of 574, 159, 50
• GCF of 827, 144, 26
• GCF of 860, 909, 59

1. What is the GCF of 686, 128, 18?

Answer: GCF of 686, 128, 18 is 2.

2. How to Find the GCF of 686, 128, 18

Answer: Greatest Common Factor(GCF) of 686, 128, 18 = 2

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

Step 2: Then multiply all the prime factors GCF(686, 128, 18) = 2.