0
I make it 684. Would you like a list?
The first time I wrote a program to compare the square root of each number from one hundred thousand to one million, and counted only those that were whole. It was late at night, and by compiling my code this brute force approach cranked out an answer in under 30 seconds. Maybe less, I don't remember.
I started to rewrite the same program just now, as I see there has been more activity on this question, but then I realized what a mental midget I had been. In thinking about code optimization it occurred to me that the square root of one million is one thousand, and so to count the perfect squares all I need to do was subtract the integral value of the square root of one hundred thousand (316) from 1000. Each of those numbers has a perfect square in the given range. 1000-316 = 684.
Had I bothered to produce a list of numbers from the original program I would have immediately realized my foolishness.
Still curious? Ask our experts.
Chat with our AI personalities
Devin
Rene
ProfessorAdd your answer:
Earn +20 pts
What is this number 123456789101112131415?
123 quintillion, 456 quadrillion, 789 trillion, 101 billion, 112 million, 131 thousand, 415
How you round numbers to the nearest thousand?
You round down to the perfect thousand, and up, to the perfect thousand, then you look which one is the nearest and choose that one. eg: 4789 ->4000 bad ->5000 good
How many edges on a sphere?
One could say that a sphere has no edges, or that it has an infinite number of edges. Software programs will render them to a few thousand/million polygons, but a perfect sphere has no/infinite edges.
What are the perfect numbers between 1 and 30?
The two perfect numbers between 1 and 30 are: 6, 28
What is the only number that is between perfect square and a perfect cube?
4
