perplexus.info :: Just Math : Recover a number

Recover a number (Posted on 2019-10-29)

A certain positive integer N is twice the product of its digits.

Find N.

Submitted by Ady TZIDON

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Subject	Author	Date
Puzzle Answer	K Sengupta	2022-07-24 04:28:53
2 digit solution by hand	shiva	2020-04-30 01:35:24
You let i run to square root of n, if divided, add i and n / i.	Annika Muhr	2020-03-24 07:17:02
re: by hand	Ady TZIDON	2019-10-29 12:39:11
by hand	xdog	2019-10-29 12:01:05
computer solution	Steven Lord	2019-10-29 09:57:33

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