for number great 5 , their factorial ends with a 0
so u need to find units place of 1!+2!+3!+4! =33
Hence answer is 3
The digit in the unit position of the integer
1!+2!+3!+.....+99! is:
a)3
b)0
c)1
d)7
for number great 5 , their factorial ends with a 0
so u need to find units place of 1!+2!+3!+4! =33
Hence answer is 3