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The magic Number (Posted on 2004-03-17) Difficulty: 1 of 5
Whats the smallest number ("the magic number") that can satisfy these conditions?

- its positive

- it is not divisible by any number below 20 (excluding 1)

- the average of the digits is an even number between 3 and 9

See The Solution Submitted by Victor Zapana    
Rating: 3.3333 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: couriosity | Comment 32 of 35 |
(In reply to couriosity by Pieater)

37 does not work because the average of 3 and 7 is 5, which is not "an even number between 3 and 9"

as for 17 (which has already been pointed out), it is divisible by 17, a number below 20

a side note: i would replace any instance of the word "number" in the original puzzle with "integer"

  Posted by hal on 2007-04-20 01:08:44
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