No. it's not a Prime number when x = 40, 41, 81,82 ...
Chat with our AI personalities
The only number which is not a prime number in that list is 49 - it is equal to seven squared.
the two prime numbers will be factors of that number, which would make that number a composite number
No, reversing the order of the digits of a two-digit prime number does not always result in a prime number.
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 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.