168 = 23 x 3 x 7.
168 has a unique representation as a sum of three squares: 168 = 22 + 82 + 102.
168 is the number of primes less than 1,000.
144,648 = 861 x 168 = 492 x 294.
168 is the total number of spots on a standard (double-6) set of dominoes.
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168 is the order of the smallest simple group that is not cyclic or alternating.
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