Who knows forty six?
ששה וארבעים - מי יודע?
The traditional Passover song "Echad - mi yodeya" implies a possible presupposition that there is a Jewish significance to be found for each natural number. Accordingly, there is an ongoing series on Mi Yodeya that is attempting to unearth significant Judaism facts about each number, in sequence.
What significant Judaism facts are there about the number 46? The more significant within Judaism and the more intrinsically dependent on the value 46, the stronger the answer. Please include sources for your information wherever possible, as with all other answers on this site.
And from lazy gematria, please don't try to base your entire answer.