Which preposition to use with outnumbers

in Occurrences 3%

Would it be any less easy to qualify for and accomplish this than to convince and outnumber in public gathering not only bodies of men but the mass of women that will also have to be confronted and convinced or overborne?

at Occurrences 2%

The French had fought gallantly, but were outnumbered at every point.

by Occurrences 2%

In former years the several thousand colored Methodists, who outnumbered by tenfold the whites in the congregations there, had enjoyed a quarterly conference of their own, with the custody of their collections and with control over the church trials of colored members; but on the ground of abuses these privileges were cancelled in 1815.

from Occurrences 1%

He was outnumbered from first to last; and all his victories were gained against greatly superior forces, and with troops greatly deficient in every necessary of war except courage and discipline.

on Occurrences 1%

Three times had he come to grips with Dupont and, though he had been outnumbered on the road to Nant, in Lanyard's sight the honours were far from easy.

Which preposition to use with  outnumbers