Question

show that 3 power n ×4 power m cannot end with the digit 0 or 5 for any natural number n and m​

Answer 1

Answer:

No, they can't end with 0 or 5.

Step-by-step explanation:

because 3 or 4 does not contain 2and 5 both as their factors , it is not possible that they end with 0 or 5

Answer 2

Step-by-step explanation:

1. for any number that meant to end with 0 it should have 2 and 5 has factors
2. here 3^n×4^m have 2 has a factor
3. but it has not 5 in its factor
4. so 3^n×4^m can not end with the digit 0 or 5