Power point
I have written a list of five different three-figure numbers, each of which is a power of a single digit. The first number is odd, and thereafter each number has the same hundreds digit or the same tens digit or the same units digit as its predecessor. What, in order, are the five numbers?
WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 7 August. The Editor’s decision is final. Please send entries to Enigma 1757, 91av, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Answer to 1751 Rainbow square: The letters are RYGBVO
The winner Gordon Walsh of York, UK
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