Numbers n with property that every digit is a prime factor of n.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =22a(5) =33a(6) =55a(7) =77a(8) =222a(9) =333a(10) =555a(11) =735a(12) =777a(13) =2222a(14) =2232a(15) =2322a(16) =2772a(17) =3222a(18) =3333a(19) =3555a(20) =5355a(21) =5535a(22) =5555a(23) =5775a(24) =7777a(25) =22222a(26) =22332a(27) =22722a(28) =23232a(29) =23322