Greatest Common Factor of 81, 80, 945

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

• Greatest Common Factor of 81, 80, 945 by common division method
• Greatest Common Factor of 81, 80, 945 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 81

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

1,3,9,27,81

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 945

List of positive integer factors of 945 that divides 945 without a remainder.

1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945

Greatest Common Factor

We found the factors 81,80,945 . The biggest common factor number is the GCF number.
So the greatest common factor 81,80,945 is 1.

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

• GCF of 13, 22, 811
• GCF of 60, 44, 598
• GCF of 25, 65, 613
• GCF of 16, 22, 136
• GCF of 40, 28, 228

1. What is the GCF of 81, 80, 945?

Answer: GCF of 81, 80, 945 is 1.

2. How to Find the GCF of 81, 80, 945

Answer: Greatest Common Factor(GCF) of 81, 80, 945 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 80, 945) = 1.