`flint_mpn_factor_trial`

Synopsis#include <flint/mpn_extras.h>

int flint_mpn_factor_trial(mp_srcptr x, mp_size_t xsize, slong start, slong stop)source

Searches for a factor of $(x, \mathit{xsize})$ among the primes flint_primes[i] for start $\le i <$ stop. Returns the first such $i$ for which the prime divides $x$ , and 0 if there is none. Requires start $\ge 1$ , so that 0 is never a valid index.

Cite this page

The FLINT team, “flint_mpn_factor_trial (mpn_extras.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/mpn_extras/flint_mpn_factor_trial.html (generated 2026-11-02).

@misc{flint-doc-mpn-extras-flint-mpn-factor-trial,
  author       = {{The FLINT team}},
  title        = {{flint\_mpn\_factor\_trial (mpn\_extras.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/mpn_extras/flint_mpn_factor_trial.html},
  note         = {Generated 2026-11-02}
}

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