Open

Relative Primeness (RelPrime)

Input

Two $n$-bit positive integers $a$ and $b$.

Problem

Are $a$ and $b$ relatively prime?

Status

Open (Tompa [1]).

Remarks

This problem is a special case of IntegerGCD.

References

  1. M. Tompa (1983). Unpublished notes on NC reductions among problems in RP, 1983..
  2. Greenlaw, R., Hoover, H. J., and Ruzzo, W. L. (1995). Limits to Parallel Computation: P-Completeness Theory. Oxford University Press. Problem B.5.7.