If a is an integer then 4 divides 4a2 so it cannot be a prime.
If a = 0 then 4a2 = 0 and cannot be simplified further
If a = 1 then 4a2 = 4 = 2*2
If a is an integer > 1, then 4a2 = 2*2*a*a
If a is not an integer, then there are too many possible options for the answer.
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9/13 is already as simplified as it is going to get because 13 is prime.
It is already simplified as 107 which is a prime number because it has only two factors which are itself and one
prime numbers can't be simplified because you can't simplify a whole number. i think what you are trying to say is why a prime number doesn't have any factors. a prime number doesn't have any factors because it is only divisible by one and itself.
3 is already simplified. It's a prime number
To simplify 177, we need to find its prime factors. 177 is not divisible by 2, but it can be divided by 3, resulting in 59. Since 59 is a prime number, the prime factorization of 177 is 3 x 59. Therefore, 177 is already in its simplest form.