perplexus.info :: Numbers : 225 as a factor

225 as a factor (Posted on 2022-04-12)

Please specify how many positive integers display the following features:
a. The number is below 10^12.
b. It is a multiple of 225.
c. Its decimal representation involves only two distinct digits.

Provide a justification of your result..

Submitted by Ady TZIDON

Rating: 5.0000 (2 votes)

Solution: (Hide)

2554
See full explanation by Larry

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

Subject	Author	Date
great	killersmile	2022-05-02 21:26:36
re(3): Analytic solution	Charlie	2022-04-30 07:29:52
re: Analytic solution	Ady TZIDON	2022-04-13 04:43:10
re(2): Analytic solution	Larry	2022-04-12 13:12:21
re: Analytic solution	Charlie	2022-04-12 12:37:05
Analytic solution	Larry	2022-04-12 10:45:51
Computer solution.	Larry	2022-04-12 09:59:01

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