Floor function used to find the number of multiples of prime powers less than the maximum 4 digit number 9999. Inspecting prime factorization directly also easily yielded one of the four digit divisors of a natural number much larger than a Vigintillion or a Googol for that matter!
An intriguing aspect of this problem is we do NOT know a suitable pronounceable Hindu Arabic numeral name for this Astronomically ginormous integer. Many thanks to teacher of elementary school math teachers Terri L. Kurz who has provided much needed instruction to the many who struggle decomposing a natural number into its unique prime factor product.
Негізгі бет Find all four digit divisors of 115^115
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