Question

6. Show that 15n cannot end with the digits 0,2 4, 6 or 8 for any natural number n.​

Answer 1

Answer:

15n cannot ends with the digits 2,4,6,8 but it can end with 0

let n be 2, which is a natural number

Now, 15n = 15×2 = 30

which is ending with 0.