EntityQ1191657· pop 14· linked from 105 articlescousin primeSign in to savepair of prime numbers that differ by 4Connectionsprime numberEntityOn-Line Encyclopedia of Integer SequencesEntitylist of prime numbersEntitysexy primeEntityPerrin numberEntityprime tripletEntityInternational Standard Book NumberEntitycomplex numberEntity11EntityQ37141Entitynumber theoryEntity17Entity19Entitydigital object identifierEntity23Entity29Entity31Entity47Entity43Entity41EntityCategoriesClasses of prime numbersUnsolved problems in number theory