Question

Show that 12n cannot end with the digits 0 and 5 for any natural number n

Answer 1

Hey friend ✋! here is your answer

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✅ To end with the digit 0 the factor must be in (2×5)^n form but here

✔️12n cam be written as (2×6)^n.

✅(2×6)^n this is not in the form of (2×5)^n & here 5 is not the factor 12.

So, therefore 12n cannot end with the digit 0 for any natural number n.

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⭐️Hope it helps you ⭐️