Greatest Common Factor of 86, 15, 89, 88, 81

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

• Greatest Common Factor of 86, 15, 89, 88, 81 by common division method
• Greatest Common Factor of 86, 15, 89, 88, 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 86

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

1,2,43,86

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

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 86,15,89,88,81 . The biggest common factor number is the GCF number.
So the greatest common factor 86,15,89,88,81 is 1.

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

• GCF of 18, 76, 55, 92, 61
• GCF of 99, 42, 71, 85, 65
• GCF of 90, 31, 66, 86, 94
• GCF of 18, 99, 36, 59, 66
• GCF of 15, 97, 52, 87, 35

1. What is the GCF of 86, 15, 89, 88, 81?

Answer: GCF of 86, 15, 89, 88, 81 is 1.

2. How to Find the GCF of 86, 15, 89, 88, 81

Answer: Greatest Common Factor(GCF) of 86, 15, 89, 88, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(86, 15, 89, 88, 81) = 1.