Greatest Common Factor of 81, 24, 621

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

• Greatest Common Factor of 81, 24, 621 by common division method
• Greatest Common Factor of 81, 24, 621 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 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Greatest Common Factor

We found the factors 81,24,621 . The biggest common factor number is the GCF number.
So the greatest common factor 81,24,621 is 3.

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

• GCF of 34, 12, 420
• GCF of 94, 18, 741
• GCF of 29, 27, 809
• GCF of 25, 36, 356
• GCF of 60, 39, 280

1. What is the GCF of 81, 24, 621?

Answer: GCF of 81, 24, 621 is 3.

2. How to Find the GCF of 81, 24, 621

Answer: Greatest Common Factor(GCF) of 81, 24, 621 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 24, 621) = 3.