257! = 220459168263110562108604143822076784665549850711827804303931502146958249306158930470002154879636011971746602532980502166682399586516279994157828347143838488599666794468785778115767528360086201968307999068680933830079433924348138026430261142807914049215705624478058833647833721754384415782383297000511532172635054974112781085585667909088173701796554745332499712247200209328048370088030000491337039143830843555432809761245800870122657191965126295552000000000000000000000000000000000000000000000000000000000000000
* 510 chiffres