perplexus.info :: Numbers : Summing the product of digits

Summing the product of digits (Posted on 2019-08-23)

Let p(n) denote the product of the nonzero digits of n. For example, p(5) = 5, p(37) = 21, and p(604) = 24. Without resorting to a computer, evaluate p(1) + p(2) + p(3) + ... + p(999999).

No Solution Yet Submitted by Danish Ahmed Khan

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Subject	Author	Date
Puzzle Answer	K Sengupta	2022-06-08 00:06:47
Solution	Brian Smith	2019-08-24 11:05:33
revised solution	Charlie	2019-08-23 12:18:08
re: solution -- I forgot about something	Charlie	2019-08-23 11:11:35
solution	Charlie	2019-08-23 10:54:18

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