Do you love factorial?
Number Theory
Level
2
\[\text{If} \quad S=1!+2.(2!)+3.(3!)+.....+10.(10!)\]
then what is the remainder when \(S+2\) is divided by \(11!\) ?
You can try my other Sequences And Series problems by clicking here : Part II and here : Part I.
by
Sandeep Bhardwaj