perplexus.info :: Numbers : Terminating in seven sevens

Terminating in seven sevens (Posted on 2009-06-26)

Determine the minimum value of a positive base ten integer N, such that each of the last seven digits of N³ is 7 but the eighth digit from the right in N³ is not 7.

See The Solution Submitted by K Sengupta

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Subject	Author	Date
re: computer solution	Jer	2009-06-26 20:32:47
computer solution	Charlie	2009-06-26 13:54:27

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