Question

The digit in the units place of 6417^189 is
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Answer 1

Answer:

we can see 7^1 = 7 , 7 is in units place

7 ^ 2 = 49 , 9 is in units place

7 ^ 3 = 343 , 3 is in units place

7 ^ 4 = 2401, 1 is in units place

7 ^ 5 = 16807, again 7 is in units place

so, The same pattern of numbers will be repeated in units place

for 7^ 6, 9 will be in units place

for 7 ^ 7, 3

for 7 ^ 8, 1

for 7 ^ 9, 7 will be in units place.

so, the digit in units place of 6417 ^ 189 is 1