Muhammad's least list
Number Theory
Level
5
How many ordered pairs of positive integers \((x,y)\) satisfy
\[ \text{lcm} (x, y) = 10004000600040001 ? \]
This problem is shared by Muhammad A.
Details and assumptions
lcm\((x,y)\) denotes the least common multiple of \( x \) and \(y\).
by
Calvin Lin