, ▁specifically ▁number ▁theory . ▁ ▁Plot ▁Un emp loy ed ▁and ▁living ▁in ▁a ▁d rab ▁a partment ▁in ▁Ch in at own , ▁Manh attan , ▁Max ▁C ohen ▁is ▁a ▁number ▁the or ist ▁who ▁bel ieves ▁everything ▁in ▁nature ▁can ▁be ▁understood ▁through ▁numbers . ▁Max ▁suff ers ▁from ▁cluster ▁head aches , ▁extreme ▁par ano ia , ▁hall uc in ations , ▁and ▁social ▁anx iety ▁dis order . ▁His ▁only ▁social ▁interactions ▁are ▁with ▁Jen na , ▁a ▁young ▁girl ▁fasc in ated ▁with ▁his ▁ability ▁to ▁perform ▁complex ▁calculations ; ▁De vi , ▁a ▁young ▁woman ▁living ▁next ▁door ; ▁and ▁Sol ▁Rob es on , ▁his ▁mathematics ▁ment or , ▁now ▁an ▁invalid . ▁ ▁Max ▁tries ▁to ▁program ▁his ▁computer , ▁Eu cl id , ▁to ▁make ▁stock ▁predictions . ▁Eu cl id ▁mal functions , ▁printing ▁out ▁a ▁seem ingly ▁random ▁ 2 1 6 - digit ▁number , ▁as ▁well ▁as ▁a ▁single ▁pick ▁at ▁one - t enth ▁its ▁current ▁value , ▁then ▁crashes . ▁Dis g usted , ▁Max ▁throws ▁away ▁the ▁print out . ▁The ▁next ▁morning , ▁he ▁lear ns ▁that ▁Eu cl id ' s ▁pick ▁was ▁accurate , ▁but ▁cannot ▁find ▁the ▁print out . ▁When ▁Max ▁mentions ▁the ▁number , ▁Sol ▁becomes ▁un ner ved ▁and ▁asks ▁if ▁it ▁contained ▁ 2 1 6 ▁digits , ▁reve aling ▁that ▁he ▁came ▁across ▁the ▁same ▁number ▁years ▁ago . ▁He ▁ur ges ▁Max ▁to ▁take ▁a