Paper Tiger

These numbers look impossibly large, but looks can be deceiving. Not everything needs brute force.

Public Key:

n = 21419426081641905767201102098510985064378737163614066455813163726824779365740434113669355641003804296852771032239530800356657932588324666808743684871468592281869967618603580610601499612075981758412069205860344647248176622999173293128196500042558101276023318139605586139147006473076957597808118527578740716104520239043930961034015272780008048496491377536892164387262467331816659339530274070926106263800395211364368130326990398627015837050344906872846937405317111198627398866572951275814796493120605354943758767642416186514215990857111694462581947936251167832111841879595243933707585006638295946823439755545142916858421

e = 3

Ciphertext:

c = 2091511386902611460937260701655947884132772708351408690803324469511430660439474124891727966410678855175349183599185890240015025253629616531226422858418363617928089655883394108602556934764713369977240186600583989748357048933

Note: This challenge requires manual analysis. Automated tools will not help you solve it.