New posts in Integers

Show that $a^3 - b^3 = c! - 18$ does not have a solution

What is the value of $\frac11+\frac13-\frac15-\frac17+\frac19+\frac1{11}-\dots$?

Can we invert these analogous "Dirichlet" series for GCD / LCM convolution?

Calculate the sum of fractionals

How is this property called for mod?

Math formula to check two integers

Need help with the proof {needed for my algorithm}

Are Transitions in a Hydrogen Atom Unique

How can I find integers which satisfy $\frac{150+n}{15+n}=m$?

What is the smallest integer greater than 1 such that $\frac12$ of it is a perfect square and $\frac15$ of it is a perfect fifth power?