30 Things You Learned In School That Are Virtually Useless NowBy Camila Villafane / October 4, 2017 Prime Numbers [dx_custom_adunit desktop_id=”RTK_K67O” mobile_id=”RTK_5yk0″] The only prime you cared about in those days was Optimus Prime. The only prime you care about these days is Amazon Prime. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30