In case you ever have need for a large-ish prime number, here are a few that are easy to remember:

• 314159 ($\lfloor \pi \cdot {10}^5\rfloor$)
• 8675309 (Jenny’s number)
• 1000000007 (a billion and seven)
• 2147483647 ($2^{31}-1$, i.e. INT_MAX)
• 11111111111111111111111 (twenty-three ones)
• 1000000000000066600000000000001 (Belphegor’s prime)