Greatest Common Factor of 17, 81, 77

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

• Greatest Common Factor of 17, 81, 77 by common division method
• Greatest Common Factor of 17, 81, 77 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 81

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

1,3,9,27,81

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Greatest Common Factor

We found the factors 17,81,77 . The biggest common factor number is the GCF number.
So the greatest common factor 17,81,77 is 1.

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

• GCF of 42, 51, 12
• GCF of 65, 15, 44
• GCF of 64, 44, 45
• GCF of 60, 41, 17
• GCF of 96, 70, 35

1. What is the GCF of 17, 81, 77?

Answer: GCF of 17, 81, 77 is 1.

2. How to Find the GCF of 17, 81, 77

Answer: Greatest Common Factor(GCF) of 17, 81, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 81, 77) = 1.