Greatest Common Factor of 81, 945, 684

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

• Greatest Common Factor of 81, 945, 684 by common division method
• Greatest Common Factor of 81, 945, 684 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 x 3 = 9

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 684

List of positive integer factors of 684 that divides 684 without a remainder.

1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684

Greatest Common Factor

We found the factors 81,945,684 . The biggest common factor number is the GCF number.
So the greatest common factor 81,945,684 is 9.

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

• GCF of 15, 846, 646
• GCF of 60, 705, 789
• GCF of 17, 346, 769
• GCF of 99, 618, 707
• GCF of 40, 642, 291

1. What is the GCF of 81, 945, 684?

Answer: GCF of 81, 945, 684 is 9.

2. How to Find the GCF of 81, 945, 684

Answer: Greatest Common Factor(GCF) of 81, 945, 684 = 9

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

Step 2: Then multiply all the prime factors GCF(81, 945, 684) = 9.