# What are the factors of 405?

factors

A factor of a number is a number that divides exactly into that number eg. 4 is a factor of 16.

To find factors try and pair them up.

for 405

5 divides into 405 so:

we have 3, 9, 27 now find pairs.

now check other combinations of the factors

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The factors of 405 are 1, 3, 5, 9, 15, 27, 45, 81, 135, and 405.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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