17603...39847 (466-digits)
This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).
Smallest prime of the form n^(n+1)+(n+2)^(n+3)+(n+4)^(n+5)+(n+6)^(n+7)+(n+8)^(n+9)+(n+10)^(n+11)+(n+12)^(n+13), case n = 189.
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