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Deux Power Divisibility (Posted on 2015-04-12) Difficulty: 3 of 5
N is a positive integer and F(N) denotes the sum of the base ten digits of N.

Derive an algorithm to determine the values of N such that F(2N) is divisible by 10.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
re: continuation of Jer's tableJer2015-04-12 17:15:52
Some Thoughtscontinuation of Jer's tableCharlie2015-04-12 13:27:24
Some ThoughtsA sequence and some thoughts.Jer2015-04-12 10:39:57
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