Greatest Common Factor of 15, 84, 85, 54, 97

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

• Greatest Common Factor of 15, 84, 85, 54, 97 by common division method
• Greatest Common Factor of 15, 84, 85, 54, 97 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 15

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

1,3,5,15

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 85

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

1,5,17,85

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Greatest Common Factor

We found the factors 15,84,85,54,97 . The biggest common factor number is the GCF number.
So the greatest common factor 15,84,85,54,97 is 1.

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

• GCF of 99, 96, 12, 91, 18
• GCF of 39, 26, 48, 12, 73
• GCF of 37, 60, 71, 27, 11
• GCF of 50, 95, 25, 84, 37
• GCF of 40, 47, 93, 69, 98

1. What is the GCF of 15, 84, 85, 54, 97?

Answer: GCF of 15, 84, 85, 54, 97 is 1.

2. How to Find the GCF of 15, 84, 85, 54, 97

Answer: Greatest Common Factor(GCF) of 15, 84, 85, 54, 97 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 84, 85, 54, 97) = 1.