A Prime number is a positive whole number (a positive integer) that has exactly two unique positive divisors, 1 and the number itself.
well 19 ia a prime and all the prime numbers are 2,3,5,7,11,13,17,19,31,37,41,43,47,53,59,61,67,71,73,79,83,,87,89,91,97 i hope i help think you . Amy Morris
Without spaces or commas, there's no way to tell what numbers you're asking about.
The greatest prime number less than 20 is 19. Not sure what "then twice" is unless you are wanting to double it, which becomes 38.
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You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!
A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies
7 is a prime number!
a prime number.
167 is a prime number.
109 is a prime number.
A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.