Greatest Common Factor of 123, 816, 18

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

• Greatest Common Factor of 123, 816, 18 by common division method
• Greatest Common Factor of 123, 816, 18 with matching the biggest common factor

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

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Factors of 816

List of positive integer factors of 816 that divides 816 without a remainder.

1,2,3,4,6,8,12,16,17,24,34,48,51,68,102,136,204,272,408,816

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 123,816,18 . The biggest common factor number is the GCF number.
So the greatest common factor 123,816,18 is 3.

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

• GCF of 353, 532, 95
• GCF of 513, 853, 46
• GCF of 981, 223, 89
• GCF of 772, 945, 54
• GCF of 414, 448, 45

1. What is the GCF of 123, 816, 18?

Answer: GCF of 123, 816, 18 is 3.

2. How to Find the GCF of 123, 816, 18

Answer: Greatest Common Factor(GCF) of 123, 816, 18 = 3

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

Step 2: Then multiply all the prime factors GCF(123, 816, 18) = 3.