Find prime numbers of the form nnn 2

# 20210315 Raku programming solution

say ((1…199)»³ »+»2).grep: *.is-prime

Output:

(3 29 127 24391 91127 250049 274627 328511 357913 571789 1157627 1442899 1860869 2146691 2924209 3581579 5000213 5177719 6751271)
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