…God imbues numbers in the Bible with special meaning. Five means atonement; 10 means completeness; 17 means heaven. If you were to multiply atonement times completeness times heaven and then, for a reason that remains mysterious, multiply that sum by itself again:
(5 x 10 x 17) x (5 x 10 x 17)
You’d end up with 722,500. Fast-forwarding 722,500 days from the date of the crucifixion—at least, the date as divined by Camping—lands you on May 21, 2011, the date of the Rapture. QED.