Greatest Common Factor of 991, 648, 81

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

• Greatest Common Factor of 991, 648, 81 by common division method
• Greatest Common Factor of 991, 648, 81 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 648

List of positive integer factors of 648 that divides 648 without a remainder.

1,2,3,4,6,8,9,12,18,24,27,36,54,72,81,108,162,216,324,648

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Greatest Common Factor

We found the factors 991,648,81 . The biggest common factor number is the GCF number.
So the greatest common factor 991,648,81 is 1.

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

• GCF of 536, 130, 80
• GCF of 676, 314, 73
• GCF of 459, 369, 68
• GCF of 658, 505, 98
• GCF of 967, 148, 91

1. What is the GCF of 991, 648, 81?

Answer: GCF of 991, 648, 81 is 1.

2. How to Find the GCF of 991, 648, 81

Answer: Greatest Common Factor(GCF) of 991, 648, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(991, 648, 81) = 1.