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3 years ago

7

What digits can be in the ones place of a number with 5 as a factor

1 answer:

frez [133]3 years ago

5 0

0 or 5

This is because 5 can only be divided evenly into a number that ends with either a five or a zero

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$u_0=1\\\\
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\boxed{u_{n+1}=(n+1)+u_{n}}\\\\

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