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72 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 72 is the smallest number that can be expressed as the difference of the squares of consecutive primes in two distinct ways, i.e., 72 = 19^2 - 17^2 = 11^2 - 7^2. [King]
Submitted: 2004-02-17 06:15:27; Last Modified: 2008-01-30 11:28:00.
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