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133 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The sum of the first three squares of semiprimes is itself a semiprime, and this is the first such sum with this property: 133 = 4^2 + 6^2 + 9^2 = 7 * 19. [Post]
Submitted: 2004-10-24 23:22:25; Last Modified: 2009-10-09 18:39:33.
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