Greatest Common Factor of 285, 309, 18

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

• Greatest Common Factor of 285, 309, 18 by common division method
• Greatest Common Factor of 285, 309, 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 3 = 3

Factors of 285

List of positive integer factors of 285 that divides 285 without a remainder.

1,3,5,15,19,57,95,285

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

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 285,309,18 . The biggest common factor number is the GCF number.
So the greatest common factor 285,309,18 is 3.

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

• GCF of 445, 602, 48
• GCF of 358, 626, 66
• GCF of 635, 669, 48
• GCF of 238, 932, 67
• GCF of 332, 918, 86

1. What is the GCF of 285, 309, 18?

Answer: GCF of 285, 309, 18 is 3.

2. How to Find the GCF of 285, 309, 18

Answer: Greatest Common Factor(GCF) of 285, 309, 18 = 3

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

Step 2: Then multiply all the prime factors GCF(285, 309, 18) = 3.