In the following multiplication sum, all the figures have been replaced with asterisks. Given that each figure is a prime number (2, 3, 5, 7), can you reconstruct the problem and find the answer?

* * * X
* *
-----------
* * * *
* * * *
-----------
* * * * *

-Ray.

Except for the 13th, that should be a 0 if you were taught to multiply in the same way as i

Darn! The system left-justified my text. 😕

Here is the proper formatting:

_____*_*_* X
_______*_*
-------------
____* * * *
__* * * *
-------------
__* * * * *

-Ray.

Why does the system collapse multiple spaces??? 😠

Originally posted by rgoudie
Darn! The system left-justified my text. 😕

Here is the proper formatting:

: * * * X
: * *
: -----------
: * * * *
: * * * *
: -----------
: * * * * *

-Ray.

Originally posted by iamatiger
I defy you to get right justification in this rather annoying message editor without inserting . characters or somesuch rather than spaces / tabs.

__775
x__33
------
_2325
23250
------
25575

I believe this is the only solution, but justifying that might be a bit long-winded.

Originally posted by Acolyte
__775
x__33
------
_2325
23250
------
25575

I believe this is the only solution, but justifying that might be a bit long-winded.