Question

If n is a natural number then 4" will never end with the digit
a. 1
b. 4
c. 6
d. 0​

Answer 1

Answer:

For the number 4

n

to end with digit zero for any natural number n, it should be divisible by 5. This means that the prime factorisation of 4

n

should contain the prime number 5.But it is not possible because 4

n

=(2)

2n

so 2 is the only prime in the factorisation of 4

n

. Since 5 is not present in the prime factorization, so there is no natural number n for which 4

n

ends with the digFor the number 4

n

to end with digit zero for any natural number n, it should be divisible by 5. This means that the prime factorisation of 4

n

should contain the prime number 5.But it is not possible because 4

n

=(2)

2n

so 2 is the only prime in the factorisation of 4

n

. Since 5 is not present in the prime factorization, so there is no natural number n for which 4

n

ends with the digit zero.

Answer 2

Answer:

d. 0

Step-by-step explanation:

Since, whatever natural number n is, 0 will never end up being the last digit of any exponential multiple of 4.

You can get 1 as the answer if u take n = 0.

Therefore, the answer is d. 0

Hope this helps you!

Please mark this answer as the brainliest!