Tagged with math trivia

#math trivia #170 solution

#math trivia for #June18: #170 can be factored three different ways into the form (a+b)*(c+d) where a, b, c, d are squares. What are they? — Burt Kaliski Jr. (@modulomathy) June 19, 2012   Start by listing the possible factorizations of 170: 1*170 2*85 5*34 10*17 Among the eight factors, the ones that can be … Continue reading

#math trivia #241 solution

#math trivia for #August29: #241 and #239 are twin primes. Does the fact that #240 is highly composite make this more likely? — Burt Kaliski Jr. (@modulomathy) August 30, 2013 A number is either prime or it isn’t, so the behavior of an adjacent number can’t make it more or less likely that a given … Continue reading