Reminder: G(2562) is the maximal order
of a pixel permutation of a 256 x 256 pixel picture.
G(2562)
= 27 x 34 x 53 x 72
x ... x 172 x 19 x ... x 919 / 907
= 24107436976929288463522986071862342451920273240564393170920449
41819955017519554578670604824873470865661872414524190177858342
65810636097626119129793375231971546144439537240529785712677123
75617172897001141282081020394958233219985347683711985830591320
97143165812673014110760283636094768695580586056307187638991355
13034355181542914923156693580802071057037000102142542231397876
08931762989456000
still a quite large number: there are 389 decimal digits.
The calculation is due to Jean-Louis Nicolas, Université Claude Bernard (Lyon 1),
see http://math.univ-lyon1.fr/~nicolas/landaug.html