Problems based on Numbers Test 4

1! + 2! + 3! + 4! + …….. + 100!
(1! + 4! + 5!) + (6! + 7!) + (2! + 3!) + 8 (1 + 9 + 9 + 10 + ……100)
145 + 6! (1 + 7) + (2 + 6) + 8 (1 + 9 + ……100)
Except 145, all the terms are divisible by 8
Now when we divide, 145 by 8, then the remainder is 1.