Simple table of numbers

I want to use document.write to make a html-table that multiplies numbers, like this:

number number*number number*number*number

I want to be able to define for how long this loop shall continue, preferrably by typing in the highest value of “number” into a prompt.
So if I define it as three the table should look like this:

1 1 1
2 4 8
3 9 27

Please help ?

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