Greatest Common Factor of 18, 12, 21, 237

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

• Greatest Common Factor of 18, 12, 21, 237 by common division method
• Greatest Common Factor of 18, 12, 21, 237 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 18

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

1,2,3,6,9,18

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 237

List of positive integer factors of 237 that divides 237 without a remainder.

1,3,79,237

Greatest Common Factor

We found the factors 18,12,21,237 . The biggest common factor number is the GCF number.
So the greatest common factor 18,12,21,237 is 3.

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

• GCF of 46, 66, 53, 338
• GCF of 87, 13, 72, 316
• GCF of 42, 42, 28, 582
• GCF of 81, 16, 72, 272
• GCF of 24, 63, 21, 968

1. What is the GCF of 18, 12, 21, 237?

Answer: GCF of 18, 12, 21, 237 is 3.

2. How to Find the GCF of 18, 12, 21, 237

Answer: Greatest Common Factor(GCF) of 18, 12, 21, 237 = 3

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

Step 2: Then multiply all the prime factors GCF(18, 12, 21, 237) = 3.