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No. it's not a Prime number when x = 40, 41, 81,82 ...
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Which is not a prime number 31 47 49 53?
The only number which is not a prime number in that list is 49 - it is equal to seven squared.
Why will a prime number times a prime number always equal a composite number?
the two prime numbers will be factors of that number, which would make that number a composite number
Does reversing the order of the digits of a two digit prime number always result in a prime number?
No, reversing the order of the digits of a two-digit prime number does not always result in a prime number.
Are there prime numbers that are also square mumbers?
No. That isn't possible: A prime number, by definition, has no smaller factors. A square number does have a smaller factor - the number that is squared.
In math what is a prime number?
in math a prime number is a number with only 2 factors. the factors are the number 1 and the number itself. 1 is not a prime number nor composite. 2 is a prime number because its only factors are 2 and 1. any other even number will be composite because 2 and some other number will always equal an even number.
