216

This number is a composite.

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The smallest and only known cube sandwiched between two triplets of semiprimes (i.e., 213=3*71, 214=2*107, 215=5*43 and 217=7*31, 218=2*109, 219=3*73). [Gupta]

Submitted: 2017-03-17 02:24:19; Last Modified: 2017-03-17 11:34:30.