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Maths Logic Riddle |
0
votes
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asked
Mar 25, 2019
in
Hard Riddles
by
anonymous
It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.
But I also know how many of these numbers are prime.
Do you?
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1
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0
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answered
Mar 25, 2019
by
anonymous
Zero
The sum of numbers from zero to nine is 45 and can be divisible by 3 and 9.
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