perplexus.info :: Numbers : Prime Product Permutation

Prime Product Permutation (Posted on 2005-03-21)

Find three different digits that no matter in what order they are arranged, the three digit number formed is the product of two primes.

Submitted by Old Original Oskar!

Rating: 3.2500 (4 votes)

Solution: (Hide)

The answer is 1, 7, 8.
178= 89x2
187= 17x11
718= 359x2
781= 71x11
817= 43x19
871= 67x13

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

Subject	Author	Date
Puzzle Answer	K Sengupta	2023-12-24 21:52:16
Puzzle Answer	K Sengupta	2022-05-31 02:55:00
Primes!	Math Man	2011-01-20 20:45:30
re(2): Exhaustive Search via computer program -- spoiler	Charlie	2005-03-22 14:51:53
re: Exhaustive Search via computer program -- spoiler	Sing4TheDay	2005-03-21 20:22:31
Exhaustive Search via computer program -- spoiler	Charlie	2005-03-21 15:15:26

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