SOLUTION: i am the number which will make a rectangle 3 times wide, i am the number which has exactly 8 factors, i am the number which has one of my factor as 4, i am the number which is not

Question 983976: i am the number which will make a rectangle 3 times wide, i am the number which has exactly 8 factors, i am the number which has one of my factor as 4, i am the number which is not a multiple of 5 or 7.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
"I am the number which will make a rectangle 3 times wide" may mean that
if the number is the length of a rectangle,
it will be twice the whole number measurement of the width of that rectangle.
In other words, I take that to mean that the number is a multiple of .
That means is a factor of the mystery number.

"I am the number which has one of my factor as 4" means that is a factor of the mystery number.

"I am the number which is not a multiple of 5 or 7" tells us that 5 and 7 are not prime factors of that mystery number, but it is not a particularly useful clue.
Other prime numbers could be factors, like 11, 13, 17, 19, 23, etc .

"I am the number which has exactly 8 factors" is an important clue.
A number that has and , but not or as factors
has a prime factorization of the form
, with and .
The factors of , with their prime factorizations, range from
to .
There are
different possible exponents for ,
different possible exponents for ,
different possible exponents for ,
different possible exponents for ,
and so on.
With all the combined possible choices, we can make
factors.
If has exactly factors,
knowing that and ,
it is obvious that it must be
<---> ,
<---> ,
<---> ,
<---> ,
<---> , and so on.
So, .
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