Question 113284

Think of a number between 99 and 999. 

My number is {{{57}}}

Consider the following: 

the number is less than 500; {{{true}}}

{{{57<500}}}

the number is a perfect square; {{{false}}}, cannot be written in the form {{{n^2}}} (last digit is {{{7}}}, prime number whose divisors are 1 and itself)

it is a cube; {{{false}}}, cannot be written in the form {{{n^3}}} (if we take 4^3 we will have 64 which is less then 57, and if we take 5^3 it will be 125 which is greater then 57)


the first and last digits of the number are 5, 7, or 9,