Question

what is the unit place of 7³⁴⁵⁶
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Answer 1

Answer:

9

Step-by-step explanation:

7×7=49

7×7×7=343

7×7×7×7=2401

7×7×7×7×7=16807

i.e. 7 is back in the unit place after 7 is multiplied 5 times by 7

So 7 is back to unit place at 7^5, 7^10 and so on

Now dividing 3456 by 5 we have a remainder 1

So 7³⁴⁵⁶, its unit digit will be same as 7^2 which is 9