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# What is the greatest common factor of 78 91?

Updated: 8/17/2019

Wiki User

8y ago

Best Answer

The GCF is 13.
The Greatest Common Factor (GCF) is: 13

Wiki User

8y ago
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Wiki User

14y ago

The greatest common factor of 78 and 91 is 13.

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### What is the greatest common factor of 78 and 91and 156?

The greatest common factor of the numbers 78, 91 and 156 is 13.

It is: 13

### What is the greatest common factor of 91 and 78?

To find the greatest common factor, or GCF, you must first identify the factors for each number.For 91, its factors are 1, 7, 13, and 91.For 78, its factors are 1, 2, 3, 6, 13, 26, 39, and 78.13 is the highest (or greatest) factor they have in common, so the GCF for 91 and 78 is 13.

The GCF is 13.

The GCF is 13.

The GCF is 13.

13

### What is the greatest common factor of 91 and 77?

To identify the GCF of 91 and 78, you first need to break these down into their prime factors: 91 = 7x13 78 = 2x3x13 The next step is to identify any common prime factors. In this case, both numbers have 13 as a prime factor. Thus the greatest common factor of 91 and 78 is 13.

### What are the common factors and greatest common factor of 78 156 and 91?

1 and 13, the GCF

The GCF is 13.

### What is the greatest common factor of 91 and 105?

The greatest common factor of 91 , 105 = 7

### What is the greatest common factor of 91 and 95?

The greatest common factor of 91 and 95 is 1