Composite Mersenne Number/Examples/M199/Historical Note

Historical Note on Mersenne Number $M_{199}$

Mersenne number $M_{199}$ was one of a set of $6$ demonstrated to be composite by Horace Scudder Uhler using a manual desk calculator in the $1940$s, in what turned out to be a vain attempt to find the next Mersenne prime after $M_{127}$.


Sources

  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $2^{229} - 1$
  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $2^{229} - 1$