Greatest Common Factor of 13, 85, 65, 71

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

• Greatest Common Factor of 13, 85, 65, 71 by common division method
• Greatest Common Factor of 13, 85, 65, 71 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 85

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

1,5,17,85

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 71

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

1,71

Greatest Common Factor

We found the factors 13,85,65,71 . The biggest common factor number is the GCF number.
So the greatest common factor 13,85,65,71 is 1.

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

• GCF of 78, 66, 51, 69
• GCF of 44, 24, 31, 83
• GCF of 35, 86, 73, 98
• GCF of 83, 57, 80, 54
• GCF of 80, 85, 74, 83

1. What is the GCF of 13, 85, 65, 71?

Answer: GCF of 13, 85, 65, 71 is 1.

2. How to Find the GCF of 13, 85, 65, 71

Answer: Greatest Common Factor(GCF) of 13, 85, 65, 71 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 85, 65, 71) = 1.