# Use scientific notation and round to the nearest tenth. `(900!)/(870!)` I am having problems calculating this. Would it be `2.6*10^88` or `2.6*10^89` ? Thanks in advance

### 1 Answer | Add Yours

Express `(900!)/(870!)` in scientific notation:

`(900!)/(870!)=(900*899*898 * * * 872*871*870!)/(870!)`

`=900*899*898 * * * 872*871`

`~~2.600366137 "x" 10^88`

So `2.6 "x" 10^88` is the answer you seek.

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The full product:

2600366137130711071661894296809544308340542942887844879291075418031966\

6088443904000000000