Tuesday, April 3, 2012

741

741 = 3 x 13 x 19.

741 is the 13th triangular number (A000217).

741 is a divisor of 772 - 1.

741 is not expressible as the sum of a prime and a triangular number (A076768).

741 and 742 have three distinct prime factors (A140077).

Source: On-Line Encyclopedia of Integer Sequences

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