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Lucas Digits Look (Posted on 2016-11-07)

L(N) denotes the Nth Lucas Number.

Find the first three digits of L(2016)

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re(2): solution+

| Comment 6 of 21 |

(In reply to re: solution+ by Charlie)

I must take your word for it.

The offset (i.e. most of the fractional part of the number missing to make it integer) clearly results from ignoring the e^(-N ) in cosh(N*Phi) exact formula; see the vast number of nines, making it " almost " an integer..

Posted by Ady TZIDON on 2016-11-07 12:24:21

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