(If 'abcdef' was the 6-digit number, then the 12-digit number would look like 'uvwabcdefxyz'.)
Will there be any further solution(s) if N contained a leading zero?
376000-> 141376000000 495475-> 245495475625 625000-> 390625000000 971582 -> 943971582724
blackjack
flooble's webmaster puzzle