Cum tribus milibus equorum (literally, "with three thousands of horses").
equos
That would be 'mille'.
Two thousand three hundred because and is only for decimals
Tres.
Three hundred nineteen thousand
You can use three words to say mentor in Latin. They are "suasor", "consiliarius" or "auctor".
three thousand
Three hundred thousand.
350,000 is said as 'Three hundred and fifty thousand'.
"Two hundred three thousand, two hundred three"
Ninety-eight thousand, three hundred sixty-four.
trois mille