Product of Consecutive Integers is Not a Power
Is it true that the product of $n>1$ consecutive integers is never a $k$-th power of another integer for any $k \geq 2$?
I can see this is true in certain cases. For instance if the product ends on a prime, But how would one prove this in general?
Thanks for any help or suggestions.
Solution 1:
Yes, this is true. This was proven by Erdős and Selfridge in this paper.