Guy, Richard K., Unsolved problems in number theory. Third edition, Problem Books in Mathematics, Springer (2004), xviii+437 pp. Section B29 "Is x determined by the prime divisors of x+1, x+2, ..., x+k?", printed p. 127: Woods's question, "Perhaps k=3?", the four ambiguous cases for k=2 in which only primes below 23 occur, the largest being (x+1,x+2)=(75,76) or (1215,1216), and the infinite family (2n−2,2n−1), (2n(2n−2),(2n−1)2); B19 "(m,n+1) and (m+1,n) with same set of prime factors. The abc-conjecture.", printed p. 113, has Erdős's two-term question with Mąkowski's pair m=3⋅52, n=35⋅5. Library home: Guy 2004.