Q:

# What are the factors of 91?

A:

The factors of the number 91 are 1, 7, 13 and 91. The factors of a number are obtained by dividing that number by other numbers. If a number is less than or equal to 91 and divides 91 exactly without leaving a remainder, it is a factor of 91.

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The smallest factor of 91 is 1. The number 1 is a factor of every number, as it divides every number without leaving a remainder. Correspondingly, every number is also a factor of itself. Therefore, the largest factor of 91 is 91 itself.

The largest factor of any number is also the smallest multiple of that number. In this case, 91 is both the largest factor and the first multiple of 91. The number 2 is never a factor of any odd number, as 2 does not divide an odd number exactly.

If the factors of a number are prime numbers, they are called prime factors of that number. In the case of 91, the prime factors are 7 and 13, as 1 is not a prime number. Similarly, the factors of 95 are 1, 5, 19 and 95. The numbers 5 and 19 are the prime factors of 95.

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