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Discussion of Problem 1586. Threeprime Numbers

Why if n=4, the answer is 204
Posted by plague 28 Mar 2008 16:06
Explain me please, why if n=4, the answer is 204.
I get 2513.
Re: Why if n=4, the answer is 204
Posted by Stefan 23 May 2008 15:22
1031 is not a THREE-PRIME nummber.
103 is THREE-PRIME nummber,
but
031 isn't, it's TWO-PRIME number
Re: Why if n=4, the answer is 204
Posted by kasarino 9 Feb 2015 19:41
Thank you for question and answers. It help to understand the task.