SOLUTION: How many 6 digit numbers can be made from 2 different digits (e.g. 3 and 7 = 333777, 373737 etc). Also, is there a simple way to work this out? Thank you Caitlan Smith

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Question 634032: How many 6 digit numbers can be made from 2 different digits (e.g. 3 and 7 = 333777, 373737 etc).
Also, is there a simple way to work this out?
Thank you
Caitlan Smith

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many 6 digit numbers can be made from 2 different digits (e.g. 3 and 7 = 333777, 373737 etc).
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Each of the 6 digits is 1 of 2 choices.
--> 2^6 = 64
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Using 2 digits is binary.
6 digits in binary has a range of from 0 to 63, = 64 numbers.