84,1

This sequence shows that the difference between a composite number and a prime rests on the modification of a single decimal digit of the given composite number

(RSA-1536)-10^84 = prime

Position[PrimeQ[Table[ \

184769970321174147430683562020016440301854933866341017147178577491065169671116\

124985933768430543574458561606154457179405222971773252466096064694607124962372\

044202226975675668737842756238950876467844093328515749657884341508847552829818\

672645133986336493190808467199043187438128336350279547028265329780293491615581\

188104984490831954500984839377522725705257859194499387007369575568843693381277\

9613089230392569695253261620823676490316036551371447913932347169566988069 - \

10^n, {n, 1463}]], True]

Sequence in context: A095607 A068405 A045569 this_sequence A111313 A015708 A114822

Adjacent sequences: A113928 A113929 A113930 this_sequence A113932 A113933 A113934

nonn,bref

Joao da Silva (zxawyh66(AT)yahoo.com), Jan 30 2006