Is there a reason for this repetition digit show?
 

I put in factordb this number








10^541456-1


factorization gives at the end


[URL="http://factordb.com/index.php?id=1100000001282794440"][COLOR=#002099]1099999999...11[/COLOR][/URL][SIZE=2]<33013>[/SIZE] · [URL="http://factordb.com/index.php?id=1100000001116934968"][COLOR=#002099]1009999999...01[/COLOR][/URL][SIZE=2]<66025>[/SIZE] · [URL="http://factordb.com/index.php?id=1100000001282794454"][COLOR=#002099]1000099999...01[/COLOR][/URL][SIZE=2]<132049>[/SIZE] · [URL="http://factordb.com/index.php?id=1100000001282794453"][COLOR=#bb0000]1000000009...01[/COLOR][/URL]


the last one is unknown if probable prime


but why this digit repetition show?


And (10^541456-1)/10999...11/1009999...01/1000099999...01 is?