Greatest Common Factor of 85, 71, 9, 80

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

• Greatest Common Factor of 85, 71, 9, 80 by common division method
• Greatest Common Factor of 85, 71, 9, 80 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 85

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

1,5,17,85

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Greatest Common Factor

We found the factors 85,71,9,80 . The biggest common factor number is the GCF number.
So the greatest common factor 85,71,9,80 is 1.

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

• GCF of 42, 59, 7, 43
• GCF of 68, 63, 6, 61
• GCF of 19, 90, 2, 28
• GCF of 67, 32, 4, 16
• GCF of 43, 56, 3, 53

1. What is the GCF of 85, 71, 9, 80?

Answer: GCF of 85, 71, 9, 80 is 1.

2. How to Find the GCF of 85, 71, 9, 80

Answer: Greatest Common Factor(GCF) of 85, 71, 9, 80 = 1

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

Step 2: Then multiply all the prime factors GCF(85, 71, 9, 80) = 1.