Wednesday, April 14, 2010

705

705 = 3 x 5 x 47.

705 is the smallest Lucas psuedoprime.

705 is a rhombic matchstick number: n(3n + 2) for n = 15.

705 is an odd interprime because it lies at the midpoint between two consecutive odd primes, 701 and 709.

The IBM 705 was one of the most powerful data processing systems available in the mid-1950s.

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