Period (multiplicative order base 10) of the terms in A116074 and A116075.

Terms

a(0) =30a(1) =15580a(2) =13160a(3) =44500a(4) =12356a(5) =75540a(6) =75820a(7) =114220a(8) =127300a(9) =129340a(10) =135220a(11) =149100a(12) =74720a(13) =81440a(14) =45040a(15) =241420a(16) =244780a(17) =261100a(18) =262900a(19) =71920a(20) =304980a(21) =108900a(22) =171140a(23) =354180a(24) =187220a(25) =125300a(26) =76508a(27) =127940a(28) =38716a(29) =395260