Greatest Common Factor of 990, 810, 81

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

• Greatest Common Factor of 990, 810, 81 by common division method
• Greatest Common Factor of 990, 810, 81 with matching the biggest common factor

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

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Factors of 810

List of positive integer factors of 810 that divides 810 without a remainder.

1,2,3,5,6,9,10,15,18,27,30,45,54,81,90,135,162,270,405,810

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 990,810,81 . The biggest common factor number is the GCF number.
So the greatest common factor 990,810,81 is 9.

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

• GCF of 633, 433, 94
• GCF of 382, 591, 30
• GCF of 231, 295, 25
• GCF of 687, 329, 77
• GCF of 642, 697, 94

1. What is the GCF of 990, 810, 81?

Answer: GCF of 990, 810, 81 is 9.

2. How to Find the GCF of 990, 810, 81

Answer: Greatest Common Factor(GCF) of 990, 810, 81 = 9

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

Step 2: Then multiply all the prime factors GCF(990, 810, 81) = 9.