Greatest Common Factor of 384, 198, 21

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

• Greatest Common Factor of 384, 198, 21 by common division method
• Greatest Common Factor of 384, 198, 21 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 384

List of positive integer factors of 384 that divides 384 without a remainder.

1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,384

Factors of 198

List of positive integer factors of 198 that divides 198 without a remainder.

1,2,3,6,9,11,18,22,33,66,99,198

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 384,198,21 . The biggest common factor number is the GCF number.
So the greatest common factor 384,198,21 is 3.

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

• GCF of 755, 958, 79
• GCF of 604, 843, 99
• GCF of 312, 254, 24
• GCF of 161, 900, 65
• GCF of 573, 284, 27

1. What is the GCF of 384, 198, 21?

Answer: GCF of 384, 198, 21 is 3.

2. How to Find the GCF of 384, 198, 21

Answer: Greatest Common Factor(GCF) of 384, 198, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(384, 198, 21) = 3.