Given two integers x and n, with 
, find the sum of all positive integers below x, that are multiples of any of the integers from 2 up to n.
, find the sum of all positive integers below x, that are multiples of any of the integers from 2 up to n.For example, for 
and 
, the sum of the multiples of 2, 3, 4 or 5 is:
and , the sum of the multiples of 2, 3, 4 or 5 is:
.Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers2
Suggested Problems
-
Get the length of a given vector
13014 Solvers
-
208 Solvers
-
301 Solvers
-
Replace every 3rd element in a vector with 4
265 Solvers
-
Compute LOG(1+X) in natural log
264 Solvers
More from this Author116
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Hi David,
I avoided exceeding 'flintmax', minimized multiplication, division and conditional statements. For small n's, like in test 7, | only used a simple sieving algorithm. I also checked my solution with Elixir, and Java and I still get the same result for test 7.
I initially did a sieving algorithm, but it was not efficient enough for large n. I did not consider splitting with two different algorithms.