A googol is greater than the number of particles in the known universe, which has been variously estimated from 10⁷² up to 10⁸⁷. Since this is also the number of zeroes in a googolplex, it would not be possible to write down or store this number (googolplex) in decimal notation, even if all the matter in the known universe were converted into paper and ink or disk drives.

External links

• Known prime factors of googolplex + n (0 <= n <= 999): http://www.alpertron.com.ar/GOOGOL.HTM
• Known prime factors of googolplex - n (0 <= n <= 999): http://www.alpertron.com.ar/GOOGOLM.HTM