Prime Curios!: 107

107
(another Prime Pages' Curiosity)

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Many Lucas numbers are not prime, but "Lucas" is (chemically) prime if we add the atomic numbers of Lu(tetium), Ca(lcium) and S(ulphur): 71 + 20 + 16 = 107. [Necula]

Submitted: 2004-01-27 16:04:51; Last Modified: 2008-01-30 11:28:00.