99999...06069 (100-digits)

This number is a prime.

                                            9999999999 9999999999 9999999999
9999999999 9999999999 9999999999 9999999999 9999999999 9999999999 9886006069

+ The largest prime number under a googol that has no prime substrings in its digits. [Gaydos]

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