What is the units digit of the sum of the nine terms of the sequence 1! + 1, 2! + 2, 3! + 3, ..., 8! + 8, 9! + 9?
By a calculator, the sum of the nine numbers is 408235, so the units digit is 5.
I just used a calculator, I think my answer is correct, maximum if you could show your work?
Cphil when do you think this bug is gonna get fixed?
I posted 6 answers and ALL of them are flagged. Maybe its because ive been inactive for 2 months?
P.S please unflag my post