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July 25, 2014

July 25, 2014

Posted by **lisa** on Tuesday, January 20, 2009 at 5:50pm.

- math -
**Reiny**, Tuesday, January 20, 2009 at 6:52pmAssuming the code may start with a zero, there are 7 digits to fill 6 spaces.

So 7*6*5*4*3*2 = 5040

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