Greatest Common Factor of 991, 378, 663

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

• Greatest Common Factor of 991, 378, 663 by common division method
• Greatest Common Factor of 991, 378, 663 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 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 378

List of positive integer factors of 378 that divides 378 without a remainder.

1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378

Factors of 663

List of positive integer factors of 663 that divides 663 without a remainder.

1,3,13,17,39,51,221,663

Greatest Common Factor

We found the factors 991,378,663 . The biggest common factor number is the GCF number.
So the greatest common factor 991,378,663 is 1.

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

• GCF of 577, 924, 534
• GCF of 294, 171, 196
• GCF of 633, 789, 153
• GCF of 107, 527, 275
• GCF of 912, 317, 670

1. What is the GCF of 991, 378, 663?

Answer: GCF of 991, 378, 663 is 1.

2. How to Find the GCF of 991, 378, 663

Answer: Greatest Common Factor(GCF) of 991, 378, 663 = 1

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

Step 2: Then multiply all the prime factors GCF(991, 378, 663) = 1.