10000...00237 (304-digits)

This number is a prime.

                                                  1000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000237

Just showing those entries submitted by 'Burton': (Click here to show all)

+ 10^303 + 237 is the smallest prime greater than an American centillion. [Burton]

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