SOLUTION: Please help with this problem Find unit digit of 21^3*21^2*34^7x46^8*77^8

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Question 729975: Please help with this problem
Find unit digit of 21^3*21^2*34^7x46^8*77^8
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find unit digit of 21^3*21^2*34^7x46^8*77^8
If the x means multiply:
Find unit digit of 21^3*21^2*34^7*46^8*77^8
--> 1*1*4*6*1 = 4