Check whether 6n can never end with the digit 2 for any natural number n

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asked Feb 11, 2015 28.2k views

1 Answer

Cyan · Answer 1 · 2015-02-15T03:29:14+0000

6 x 2 = 12
6 x 7 = 42
6 x 12 = 72
6 x 17 = 102

For any 'n' equal to ( 2 + any multiple of 5), 6n ends with the digit '2' .

The conjecture appears to be pretty well shot.

Check whether 6n can never end with the digit 2 for any natural number n

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