Question
If P is a prime number, then np - n is divisible by p when n is a
Answer: Option A
:
A
np - n is divisible by p for any natural number
greater than 1. It is Fermet's theorem.
Trick:Let n = 4 and p = 2
Then (4)2 - 4 = 16 - 4 = 12, it is divisible by 2.
So,it is true for any natural number greater than 1.
Was this answer helpful ?
:
A
np - n is divisible by p for any natural number
greater than 1. It is Fermet's theorem.
Trick:Let n = 4 and p = 2
Then (4)2 - 4 = 16 - 4 = 12, it is divisible by 2.
So,it is true for any natural number greater than 1.
Was this answer helpful ?
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