If a number cannot be factored it is a prime number.
A completely factored form is one which is composed of product of factors and can't be factorized further. Let us consider two examples: x2 - 4x + 4 is not a factored form because it can be factored as (x - 2)(x - 2). (x +1)(x2 - 4x + 4) is also not a factored form because x2 - 4x + 4 can be factored further as (x - 2)(x - 2). So, the completely factored form is (x + 1)(x - 2)(x - 2).
2(a+b) is 2a plus 2b in factored form.
If you mean 4y+10 then it is 2(2y+5) when factored
It is (x+4)(x+5) when factored
The fundamental theorem of arithmetic says any integer can be factored into a unique product of primes. The is the prime factored form.
As a product of its prime factors: 2*3*7 = 42
3*5*11
289 = 17 x 17
It is 23 and 1 because 23 is a prime number
2*3*3*5 = 90
It doesn't factor. 9 and 47 are co-prime.
19/100 (19 is prime, it can not be factored)
11 has no factors; it's a Prime number.
73 7*7*7 = 343
17 is a prime and the only factorisation is 17 = 1*17
10(u + 30)