Greatest Common Factor of 1, 86, 99, 81

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

• Greatest Common Factor of 1, 86, 99, 81 by common division method
• Greatest Common Factor of 1, 86, 99, 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 1

List of positive integer factors of 1 that divides 1 without a remainder.

1

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 99

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

1,3,9,11,33,99

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 1,86,99,81 . The biggest common factor number is the GCF number.
So the greatest common factor 1,86,99,81 is 1.

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

• GCF of 1, 11, 88, 56
• GCF of 3, 68, 85, 43
• GCF of 8, 31, 82, 17
• GCF of 6, 23, 55, 52
• GCF of 8, 55, 17, 65

1. What is the GCF of 1, 86, 99, 81?

Answer: GCF of 1, 86, 99, 81 is 1.

2. How to Find the GCF of 1, 86, 99, 81

Answer: Greatest Common Factor(GCF) of 1, 86, 99, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(1, 86, 99, 81) = 1.