Question

If the differnece between the smallest five digit perfect cube and the greastest four digit perfect tube is a then (a–56) can be

Answer 1

the smallest five digit cube is of 22, 10648
the largest four digit cube is of 21, 9261
therefore difference = 1387
therefre, a=1387
therefore, a-56 = 1331, which is perfect cube of 11

Answer 2

The 5 digit smallest perfect cube is 10648,,,,,,,and highest 4 digit perfect cube is 9261,,,,,,,so 10648-9261=1387,,
,,,a=1387,,,,,,,,,as given (a-56),,,,,,,then,,,
{{{((((( 1387-56)))))}}}=1331....
then 1331 is the perfect cube of 11....
So, 11 is the answer...