Greatest Common Factor of 81, 945, 687

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

• Greatest Common Factor of 81, 945, 687 by common division method
• Greatest Common Factor of 81, 945, 687 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 81

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

1,3,9,27,81

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

Factors of 687

List of positive integer factors of 687 that divides 687 without a remainder.

1,3,229,687

Greatest Common Factor

We found the factors 81,945,687 . The biggest common factor number is the GCF number.
So the greatest common factor 81,945,687 is 3.

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

• GCF of 64, 198, 800
• GCF of 89, 185, 487
• GCF of 79, 528, 546
• GCF of 77, 953, 136
• GCF of 25, 412, 994

1. What is the GCF of 81, 945, 687?

Answer: GCF of 81, 945, 687 is 3.

2. How to Find the GCF of 81, 945, 687

Answer: Greatest Common Factor(GCF) of 81, 945, 687 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 945, 687) = 3.