Greatest Common Factor of 18, 21, 16, 244

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

• Greatest Common Factor of 18, 21, 16, 244 by common division method
• Greatest Common Factor of 18, 21, 16, 244 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 18

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

1,2,3,6,9,18

Factors of 21

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

1,3,7,21

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 244

List of positive integer factors of 244 that divides 244 without a remainder.

1,2,4,61,122,244

Greatest Common Factor

We found the factors 18,21,16,244 . The biggest common factor number is the GCF number.
So the greatest common factor 18,21,16,244 is 1.

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

• GCF of 44, 97, 85, 412
• GCF of 58, 48, 19, 762
• GCF of 69, 59, 51, 472
• GCF of 90, 40, 34, 604
• GCF of 87, 78, 88, 782

1. What is the GCF of 18, 21, 16, 244?

Answer: GCF of 18, 21, 16, 244 is 1.

2. How to Find the GCF of 18, 21, 16, 244

Answer: Greatest Common Factor(GCF) of 18, 21, 16, 244 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 21, 16, 244) = 1.