Greatest Common Factor of 10, 55, 99, 85, 81

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

• Greatest Common Factor of 10, 55, 99, 85, 81 by common division method
• Greatest Common Factor of 10, 55, 99, 85, 81 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

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 10,55,99,85,81 . The biggest common factor number is the GCF number.
So the greatest common factor 10,55,99,85,81 is 1.

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

• GCF of 51, 62, 65, 24, 29
• GCF of 93, 17, 62, 76, 35
• GCF of 55, 60, 19, 24, 85
• GCF of 77, 25, 16, 23, 94
• GCF of 71, 53, 61, 59, 18

1. What is the GCF of 10, 55, 99, 85, 81?

Answer: GCF of 10, 55, 99, 85, 81 is 1.

2. How to Find the GCF of 10, 55, 99, 85, 81

Answer: Greatest Common Factor(GCF) of 10, 55, 99, 85, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(10, 55, 99, 85, 81) = 1.