Greatest Common Factor of 81, 12, 705

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

• Greatest Common Factor of 81, 12, 705 by common division method
• Greatest Common Factor of 81, 12, 705 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 705

List of positive integer factors of 705 that divides 705 without a remainder.

1,3,5,15,47,141,235,705

Greatest Common Factor

We found the factors 81,12,705 . The biggest common factor number is the GCF number.
So the greatest common factor 81,12,705 is 3.

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

• GCF of 19, 60, 631
• GCF of 62, 68, 740
• GCF of 18, 85, 466
• GCF of 21, 60, 929
• GCF of 14, 28, 721

1. What is the GCF of 81, 12, 705?

Answer: GCF of 81, 12, 705 is 3.

2. How to Find the GCF of 81, 12, 705

Answer: Greatest Common Factor(GCF) of 81, 12, 705 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 12, 705) = 3.