What is the units digit of 26! + 50! + 4! + 4!? Choices.
A) 8	B) 6	C) 4	D) 2	E) 0
Let us first write down the factorials of different numbers:   1! = 1   2! = 2   3! = 6   4! = 24   5! = 120   6! = 720   and so on.   If we notice here, all the numbers after 4! will end with a 0.   Here is why:   If we multiply any number by 10, a 0 is added to that number   And a 10 is formed by a 5 and a 2, 10 = 5*2   Till 4!, we do not have a "5" in multiplication. But after that, we will have atleast one "5" in the multiplication.   Coming back to the question,   Units digit of 26! + 50! + 4! + 4! = ?   By the logic above, 26! and 50! will end in a "0"   4! will end in a 4   Hence the units digit = 0 + 0 + 4 + 4= 
<gadget id="calculator">0 + 0 + 4 + 4</gadget>
<output>8</output>
8   Correct Option: 8
<result>A</result>
What is the units digit of 26! + 50! + 4! + 4!?