197 (the 45th prime)
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193
Octal
(305)
_{8}
Hexadecimal
(C5)
_{16}
Prime gap
2
15th
Twin prime
(the small number)
The big number is
193
.
21st
Prime of the Form 4n+1
1
^{2}
+ 14
^{2}
13th
Euler prime number
20th
Left-truncatable prime
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