17101...80291 (108-digits)

This number is a prime.

                                   17101319 2328313244 4968707982 8691949710
0103109129 1301331391 6717618819 0192193203 2082192262 3023623926 2263280291

+ A prime formed from the concatenation of the first forty-three happy numbers. [Gupta]

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