Greatest Common Factor of 36, 51, 81, 68, 991

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

• Greatest Common Factor of 36, 51, 81, 68, 991 by common division method
• Greatest Common Factor of 36, 51, 81, 68, 991 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 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 81

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

1,3,9,27,81

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 991

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

1,991

Greatest Common Factor

We found the factors 36,51,81,68,991 . The biggest common factor number is the GCF number.
So the greatest common factor 36,51,81,68,991 is 1.

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

• GCF of 26, 22, 72, 17, 512
• GCF of 39, 42, 81, 52, 910
• GCF of 80, 19, 82, 55, 961
• GCF of 32, 14, 45, 36, 443
• GCF of 34, 97, 46, 96, 103

1. What is the GCF of 36, 51, 81, 68, 991?

Answer: GCF of 36, 51, 81, 68, 991 is 1.

2. How to Find the GCF of 36, 51, 81, 68, 991

Answer: Greatest Common Factor(GCF) of 36, 51, 81, 68, 991 = 1

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

Step 2: Then multiply all the prime factors GCF(36, 51, 81, 68, 991) = 1.