# What are the factors of 40?

The factors are

[I divide 40 by 2 because I can see that it is divisible by 2; this gives me the next pair.]

[At this point, we're checking 3. However, 40 is not divisible by 3. I usually write a number before checking, so I cross out any values that aren't factors.]]

Proceed to 6. However, 40 cannot be divided by 6; 6 is not a factor of 40.

[40 cannot be divided by 7]

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The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, and 40.

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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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