bonanova 84 Posted April 5, 2018 Report Share Posted April 5, 2018 Find a, b, c. ab x ca= abca , a 4-digit number Quote Link to post Share on other sites
1 Solution rocdocmac 9 Posted April 5, 2018 Solution Report Share Posted April 5, 2018 (edited) Spoiler Answer: a = 2, b = 5, c = 9 2^5*9^2 = 2592 Edited April 5, 2018 by rocdocmac Quote Link to post Share on other sites
0 BMAD 64 Posted April 5, 2018 Report Share Posted April 5, 2018 I hope there is a nuanced way of solving this besides brute force. Quote Link to post Share on other sites
0 rocdocmac 9 Posted April 8, 2018 Report Share Posted April 8, 2018 On 4/5/2018 at 10:24 PM, BMAD said: I hope there is a nuanced way of solving this besides brute force. Trust so too! BN ... is there a way to work it out mathematically? I don't think that logarithms will suffice! Quote Link to post Share on other sites
0 bonanova 84 Posted April 11, 2018 Author Report Share Posted April 11, 2018 Not that I know of. Tables of powers, or spreadsheet where different abc values can be simply typed in, or inspired guesswork? It's not my fav type of puzzle, but some like this type. Quote Link to post Share on other sites
0 rocdocmac 9 Posted April 13, 2018 Report Share Posted April 13, 2018 Thanks! Quote Link to post Share on other sites
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bonanova 84
Find a, b, c.
ab x ca= abca , a 4-digit number
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