13917...02101 (1000-digits)
This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).
Just showing those entries submitted by 'Rivera': (Click here to show all)
Titanic prime obtained by starting with the prime 11 and then inserting the smallest digit (from 0-9) in the leftmost interdigital position that produces a prime. Repeat this until a 1000-digit prime is obtained. [Rivera]
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