Answer
$124750$, $2.041694\cdot10^{107}$.
Work Step by Step
After entering "500 choose 2" to google, it returns with a calculator and a result of $124750$.
After entering "500 choose 100" to google, it returns with a calculator and a result of $2.041694e+107$, which means $2.041694\cdot10^{107}$.
