421 (the 82nd prime)
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419
Octal
(645)
8
Hexadecimal
(1A5)
16
Prime gap
10
39th
Prime of the Form 3n+1
11
2
+ 3 * 10
2
40th
Prime of the Form 4n+1
14
2
+ 15
2
20th
Euler prime number
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Primes from 1 to 10000
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