10529
This number is a prime.
Just showing those entries submitted by 'Gaydos': (Click here to show all)
 
The smallest Sophie Germain prime for which its safe prime
is a rearrangment of the same digits.  [Gaydos]
 
Removing the zero from the 1287th prime number (10529) produces the 1287th composite number (1529).  [Gaydos]
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