["BIOGRAPHY & AUTOBIOGRAPHY \/ Science & Technology","Biography & Autobiography \/ Educators","Biography & Autobiography \/ General","Biography & Autobiography\/Science & Technology","MATHEMATICS \/ General","MATHEMATICS \/ History & Philosophy","Mathematics\/History & Philosophy","Biography: science, technology & medicine","Autobiography","BIOGRAPHY & AUTOBIOGRAPHY","BIOGRAPHY & AUTOBIOGRAPHY \/ Science & Technology","Biography","Biography & Autobiography \/ Educators","Biography & Autobiography \/ General","Biography & Autobiography\/Science & Technology","Biography\/Autobiography","Biography: science, technology & medicine","Erd+os, Paul","GENERAL","History & Philosophy","MATHEMATICIANS AND THEIR WORKS","MATHEMATICS","MATHEMATICS \/ General","MATHEMATICS \/ History & Philosophy","Mathematicians - Hungary","Mathematicians;Biography.","Mathematicians;Hungary;Biography.","Mathematics\/History & Philosophy","Non-Fiction","Scholarly","Scholarly\/Undergraduate","Science & Technology","Undergraduate","Western Europe","the beauty of math; mathematics; math genius; history of math; biography of mathmetician; number theory; love of numbers; erdos number; erdos life; brain is open; last theorem","the beauty of math;mathematics;math genius;history of math;biography of mathmetician;number theory;love of numbers;erdos number;erdos life;brain is open;last theorem"]