WOW, after reading some of these comments I'm now "worried" about people going to ridiculous lengths to figure out my phone number!! Is this why some people are distrustful of others, because there are yahoos that actually DO that? I personally will go thru ZERO % hassle (or math, yikes) in order to decipher someone's digits; I MIGHT ask, if he says no/not yet then I won't even ask a second time. But seriously, I only answer the phone 1/2 the time when someone I know is calling, random # calling me doesn't stand a chance
BTW, my digits absolutely do NOT match what I need, LMAO!!