523 (the 99th prime)
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521
Octal
(1013)
_{8}
Hexadecimal
(20B)
_{16}
Prime gap
18
46th
Prime of the Form 3n+1
4
^{2}
+ 3 * 13
^{2}
52nd
Prime of the Form 4n+3
34th
Left-truncatable prime
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