PutnamSuperchallengeIntegrals I: Feynman's Trick ShareIntegrals I: Feynman's Trick · Superchallenge problemFind the remainder when ∑k=1100k⋅k!\displaystyle\sum_{k=1}^{100} k\cdot k!k=1∑100k⋅k! is divided by 100010001000.Check Show answer Walk through it step by step Practice more like this Review this concept