Amusement Corner
A Brain Teaser for you
The six letters A, C, E, F, N and U all represent different single digit (non zero) numbers.
These can be put together to form the 2 digit number UN, the 3 digit number ACC and the 4 digit numbers NEUF and CENT. All of these are perfect squares.
It is also true that

What are the 6 numbers concealed by the letters?
(Click here if you want some help with ‘squares’)