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Common Answers

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Today is Day 247 of 2015

247

is the smallest possible difference between 2 integers that together contain each digit exactly once.
its digits sum to its smallest prime factor:
247 = 13 x 19 and 2 + 4 + 7 = 13

Many thanks are extended to Archimedes' Lab for their information.




247

Today is day number   of 2015. Below are various representations of the number 247, some dating thousands of years, and some very modern.

Chinese

Egyptian

Mayan

 

Babylonian

Greek

Abacus

Roman

 

Hex

 

Binary

 

Many thanks are extended to Jo Edkins for her wonderful work.

 

 



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