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#21
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Since we are on the topic of obscure references for our user number. Mine user number is 77. What is apropos about that? Well, not only is it the sum of the first 8 prime numbers and a Blum integer, it also has a vintage baseball reference.
It along with the #78 forms a Ruth-Aaron pair. In mathematics, a Ruth-Aaron pair consists of two consecutive integers (e.g. 714 and 715) for which the sums of the prime factors of each integer are equal: 714 = 2 × 3 × 7 × 17 715 = 5 × 11 × 13 and 2 + 3 + 7 + 17 = 5 + 11 + 13 = 29 I would imagine that this is called a Ruth-Aaron pair due to the sequence followed with the HR record being broken, but that probably goes without saying. If only distinct prime factors are counted, the first few Ruth-Aaron pairs are: (5, 6), (24, 25), (49, 50), (77, 78), (104, 105), (153, 154), (369, 370), (492, 493), (714, 715), ... Thanks to Wikipedia for the reference. |
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