perplexus.info :: Numbers : Big, super and prime

Big, super and prime (Posted on 2010-10-20)

A superprime is an integer such that all its left-to-right initial segments are prime (e.g. 7331 whose segments are 7, 73, 733, and 7331, all prime).
There is a largest superprime.

Find it.

Source: USA Computing Olympiad, Feb 1995.

No Solution Yet Submitted by Ady TZIDON

Rating: 3.0000 (2 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Solved by hand	Jer	2010-10-21 15:39:50
re(4): Another method. -- solution for that Euler problem 37	broll	2010-10-21 12:14:59
re(3): Another method. -- solution for that Euler problem 37	Charlie	2010-10-21 11:41:36
re(2): Another method. -- solution for that Euler problem 37	Charlie	2010-10-20 15:18:20
Basic programming solution	Charlie	2010-10-20 14:17:12
re: Another method.	Daniel	2010-10-20 12:50:37
Another method.	broll	2010-10-20 12:34:48
computer solution	Daniel	2010-10-20 12:02:07

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info