Greatest Common Factor of 18, 30, 438

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

• Greatest Common Factor of 18, 30, 438 by common division method
• Greatest Common Factor of 18, 30, 438 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 x 3 = 6

Factors of 18

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

1,2,3,6,9,18

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 438

List of positive integer factors of 438 that divides 438 without a remainder.

1,2,3,6,73,146,219,438

Greatest Common Factor

We found the factors 18,30,438 . The biggest common factor number is the GCF number.
So the greatest common factor 18,30,438 is 6.

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

• GCF of 95, 66, 350
• GCF of 40, 80, 980
• GCF of 21, 24, 200
• GCF of 45, 45, 831
• GCF of 93, 13, 737

1. What is the GCF of 18, 30, 438?

Answer: GCF of 18, 30, 438 is 6.

2. How to Find the GCF of 18, 30, 438

Answer: Greatest Common Factor(GCF) of 18, 30, 438 = 6

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

Step 2: Then multiply all the prime factors GCF(18, 30, 438) = 6.