# Proth Prime/Examples/8423 x 2^59,877 + 1

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## Example of Proth Prime

The Proth number:

- $8423 \times 2^{59 \, 877} + 1$

is a Proth prime.

## Proof

## Historical Note

The Proth number $8423 \times 2^{59 \, 877} + 1$ was identified as being a Proth prime in $1988$ by D.A. Buell and J. Young.

## Sources

- 1988: D.A. Buell and J. Young:
*Some Large Primes and the Sierpiński Problem*(*SRC Tech. Rep***Vol. 88004**)

- 1997: David Wells:
*Curious and Interesting Numbers*(2nd ed.) ... (previous) ... (next): $8423 \times 2^{59,877} + 1$