Question

What is the remainder when 1! +2! +3! +…+99! +100! Is divided by 12?

• A. 11
• B. 9
• C. 8
• D. 0

Answer 1

Answer:

B. 9

After 3! all the number is divisible by 12 . From 4! onwards all the terms Perfectly divisible by 12 . This makes 4!+……..+100! Term remainder is 0 . So 1!+2!+3!=9 will remain only , hence the answer will be 9.