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Prime divisors of some shifted products
2005
International Journal of Mathematics and Mathematical Sciences
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We study prime divisors of various sequences of positive integersA(n)+1,n=1,...,N, such that the ratiosa(n)=A(n)/A(n−1)have some number-theoretic or combinatorial meaning. In the casea(n)=n, we obviously haveA(n)=n!, for which several new results about prime divisors ofn!+1have recently been obtained.
doi:10.1155/ijmms.2005.3057
fatcat:k77ugbsaezggrochz2pxtbkafy