Question

67) Show that 12

can not end with the digit 0 or 5 for any natural number .​

Answer 1

Answer:

it can't end with 5&0

Step-by-step explanation:

for getting 5&0 on unit place the prime factors should contain a combination of 2 and 5.

but the prime factors of 12 are 2*2*3

thus no combination of 5&2