Question

find the digit at the unit place of the number
${7}^{2019 \times {3}^{2019} }$
​

Answer 1

Answer:

7^2019×3^2019

=21^2019

Now,

We know that if the unit's digit of a no. is 1 then the unit's digit of its every power will be 1.

Therefore 1 Will be the right answer.

DONE

Hope it helps you.

Step-by-step explanation:

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