Find the unit digit of 4198 + 612345 + 34866 + 2411 + 1.

Given that,  $4198+612345+34866+2411+1$

Now Power Cycle of

4 is 4, 6 

6 is 6 

8 is 8, 4, 2, 6

1 is 1

$4198$- 198 is even number , So the unit digit value is 6 

$612345$ - It is always 6

$34866$-  66/4 the remainder is 2 , So the second value is 4

$2411$- 11 is odd number, So the unit digit value is 4

1 - It is always 1 

Total = 21

Therefore, The unit digit is 1