How many positive integers less than 500 are the product of exactly
two distinct (meaning different) primes, each of which is greater than 10?
+26397 How many positive integers less than 500 are the product of exactly
two distinct (meaning different) primes, each of which is greater than 10 ?
np1p2p1⋅p2111⋅13=143211⋅17=187311⋅19=209411⋅23=253511⋅29=319611⋅31=341711⋅37=407811⋅41=451911⋅43=4731013⋅17=2211113⋅19=2471213⋅23=2991313⋅29=3771413⋅31=4031513⋅37=4811617⋅19=3231717⋅23=3911817⋅29=4931919⋅23=437
+26397 How many positive integers less than 500 are the product of exactly
two distinct (meaning different) primes, each of which is greater than 10 ?
np1p2p1⋅p2111⋅13=143211⋅17=187311⋅19=209411⋅23=253511⋅29=319611⋅31=341711⋅37=407811⋅41=451911⋅43=4731013⋅17=2211113⋅19=2471213⋅23=2991313⋅29=3771413⋅31=4031513⋅37=4811617⋅19=3231717⋅23=3911817⋅29=4931919⋅23=437
