Largest known prime

The worlds largest known and verified Mersenne prime was found January 25th, 2013. five hundred eighty one domilliamillianongenquattuormilliacenquattuornonagintilliard, eight hundred eighty seven domilliamillianongenquattuormilliacenquattuornonagintillion, two hundred sixty six domilliamillianongenquattuormilliacentrenonagintilliard, two hundred thirty two domilliamillianongenquattuormilliacentrenonagintillion, two hundred forty six domilliamillianongenquattuormilliacendononagintilliard ...

Number calculation

( in short scale US )

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whole number is here :

48th Mersenne prime discovered January 25th 2013

and in number format

m57885161 = 2^57885161-1

All the numbers

581 * 10^
+   887 * 10^

+   266 * 10^

+   232 * 10^
+   246 * 10^ 581.887.266.232.246.442.175 ..

17,425,170 digits