Reasonable star patterns on the American flag correspond to special factorizations; the density of such factorizations is less than the density of values in a multiplication table; Paul Erdös showed this density asymptotically approaches zero by considering the average number of prime factors of an integer. – See more at: http://www.maa.org/programs/maa-awards/writing-awards/lester-r-ford-awards/arrangements-of-stars-on-the-american-flag#sthash.e9PHpilF.dpuf
Reasonable star patterns on the American flag correspond to special factorizations; the density of such factorizations is less than the density of values in a multiplication table; Paul Erdös showed this density asymptotically approaches zero by considering the average number of prime factors of an integer. – See more at: http://www.maa.org/programs/maa-awards/writing-awards/lester-r-ford-awards/arrangements-of-stars-on-the-american-flag#sthash.e9PHpilF.dpuf
Reasonable star patterns on the American flag correspond to special factorizations; the density of such factorizations is less than the density of values in a multiplication table; Paul Erdös showed this density asymptotically approaches zero by considering the average number of prime factors of an integer. – See more at: http://www.maa.org/programs/maa-awards/writing-awards/lester-r-ford-awards/arrangements-of-stars-on-the-american-flag#sthash.e9PHpilF.dpuf
Reasonable star patterns on the American flag correspond to special factorizations; the density of such factorizations is less than the density of values in a multiplication table; Paul Erdös showed this density asymptotically approaches zero by considering the average number of prime factors of an integer.
Read the article here: http://www.maa.org/programs/maa-awards/writing-awards/lester-r-ford-awards/arrangements-of-stars-on-the-american-flag
Mean Green Math 