ルース=アーロン・ペア
1. Ruth–Aaron pairIn 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 If only distinct prime factors are counted, the first few Ruth–Aaron pairs are:,,,,,, (369, 370), (492, 493), (714, 715), (1682, 1683), (2107, 2108) (The lesser of each pair is listed in). Counting repeated prime factors (e.g.
Read “Ruth–Aaron pair” on English Wikipedia
Read “ルース=アーロン・ペア” on Japanese Wikipedia
Read “Ruth–Aaron pair” on DBpedia
Read “Ruth–Aaron pair” on English Wikipedia
Read “ルース=アーロン・ペア” on Japanese Wikipedia
Read “Ruth–Aaron pair” on DBpedia
Discussions
Log in to talk about this word.