if the difference between the smallest five digit perfect cube and the greatest four digit perfect cube is a, then( a - 56) can be a cube of
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it can be cube of 11
the smallest five digit perfect cube is 10648
and the biggest perfect cube of four digit is 9261
10648-9261=1387
and 1387-56=1331
11×11×11=1331
so the answer is 11
the smallest five digit perfect cube is 10648
and the biggest perfect cube of four digit is 9261
10648-9261=1387
and 1387-56=1331
11×11×11=1331
so the answer is 11
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