

A156083


In this sequence each prime ends a prime century. Place a 0 between the final two digits, and raise the 100s digit by 1, to form the first prime of the next century.


1



8783, 22787, 23899, 26893, 37897, 54679, 64891, 65789, 67891, 70891, 71899, 73897, 76781, 89899, 91781, 98899, 108677, 110899, 115891, 124897, 130787, 131899, 133781, 139891, 144671, 149899, 152899, 164789, 187897, 190891, 206783, 207679
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OFFSET

1,1


COMMENTS

These appear to occur in a fairly random fashion much like prime quadruplets.
The 10s digit must be greater by 1 than the 100s digit.  Tanya Khovanova, Jul 10 2021


LINKS



EXAMPLE

8783 becomes 8803, note that 83 becomes 803.


PROG

(PARI) is(p)=my(q=nextprime(p+1), a=p%1000\100); isprime(p) && a==p%100\101 && qp==9010*a \\ Charles R Greathouse IV, Feb 07 2013


CROSSREFS



KEYWORD

nonn,base


AUTHOR



EXTENSIONS



STATUS

approved



