We just completed a major update. Let us know if anything is not working.
This number is a prime.
11111119 9999999999 9999999999 9999999999
Single Curio View: (Seek other curios for this number)The fifth (the fourth being 1111111999999, an emirp) of an infinite sequence of primes formed by right-concatenating further instances of an identical terminating digit 9 to 11111119 the near-rep-digit twin prime of 11111117. In this case the prime differs by only a SINGLE additional identical digit from the sixth prime so formed, i.e. 111111199999999999999999999999999999999. [Harrison]
Submitted: 2020-02-09 16:47:27; Last Modified: 2020-02-09 19:01:30.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell