Question

write the unit digits of the cube of the of the following number. (387)³ (83)³

Answer 1

378=54,010,152
83=571,787
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Answer 2

This can be evaluated using ones digits of the numbers

Here the notation (a*b) outputs only the units digit of the product a*b

i.e (7*7)*(7*3)*(3*3)

= (9*1*9)

=1

Therefore 1 is the units digit.