Teaser 2711

Megan’s house

Megan’s class has been learning about primes and squares. So their teacher challenged each of them to use some of the digits 1 to 9 to write down three two-figure squares and a two-figure prime without using any digit more than once. They all succeeded in doing this and in Megan’s case the left-over digit was her house number. If you knew her house number it would be possible to work out the four two-figure numbers that she wrote down.

What were they?

Solution to Teaser 2709: R I L A K S D C T N M O

Send your solution to Teaser 2711, The Sunday Times, 1 London Bridge Street, London, SE1 9GF, or email puzzle.entries@sunday-times.co.uk. The first two correct solutions opened win £20.