Question

Check whether 30^n can end with digit 5, for any natural number n

Answer 1

Answer:

yes

Step-by-step explanation:

• 30=5×2×3

1. so ,

• 30^n=5^n×2^n×3^n
• so if 5×2 is a factor of 30^n so it will end with digit 5,for any natural n