Problem 170

A place to air possible concerns or difficulties in understanding ProjectEuler problems. This forum is not meant to publish solutions. This forum is NOT meant to discuss solution methods or giving hints how a problem can be solved.
Forum rules
As your posts will be visible to the general public you
are requested to be thoughtful in not posting anything
that might explicitly give away how to solve a particular problem.

This forum is NOT meant to discuss solution methods for a problem.

In particular don't post any code fragments or results.

Don't start begging others to give partial answers to problems

Don't ask for hints how to solve a problem

Don't start a new topic for a problem if there already exists one


See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
Post Reply
User avatar
Raman
Posts: 15
Joined: Sun Nov 28, 2010 1:40 pm
Location: Chennai, India

Problem 170

Post by Raman »

By making use of this way
I find out that
9*1087345 = 9786105
9*26 = 234

concatenated product for 9786105234 is the largest case that I could ever get up with.
In this question, is my understanding of style correct enough
or that am I missing off with something from this question
that is being unknown enough to me, as for now?

By the way, is this juxtaposition style for 9786105 along with 234
as above being a valid enough one, anyway, however man?

Image
Image
TripleM
Posts: 382
Joined: Fri Sep 12, 2008 3:31 am

Re: Problem 170

Post by TripleM »

Your understanding of everything is correct, but your answer is not the largest.
User avatar
Raman
Posts: 15
Joined: Sun Nov 28, 2010 1:40 pm
Location: Chennai, India

Re: Problem 170

Post by Raman »

Is this atleast valid enough man?
18*547=9846
18*20639=371502

Thus its concatenated product being 9846371502
or are they otherwise being already
solely limited up to single digits only actually?
Raman.png
Raman.png (6.38 KiB) Viewed 3102 times
Last edited by Raman on Fri Jul 29, 2011 6:53 pm, edited 1 time in total.
Image
User avatar
jaap
Posts: 559
Joined: Tue Mar 25, 2008 3:57 pm
Contact:

Re: Problem 170

Post by jaap »

That is a valid solution. (just not the largest)
castrate
Posts: 25
Joined: Mon Aug 19, 2019 2:34 pm

Re: Problem 170

Post by castrate »

78*12645=986310
78*093=7254
So is 9863107254 a valid answer?
castrate
Posts: 25
Joined: Mon Aug 19, 2019 2:34 pm

Re: Problem 170

Post by castrate »

Solved the problem, and the answer to leading zeroes appears to be No.
Post Reply