It's very important, it's magical!
Every number can be multiplied by 19.Every number can be multiplied by 19.Every number can be multiplied by 19.Every number can be multiplied by 19.
19 is a prime.
Try dividing the number by 19. If the answer is a whole number (with no remainder), then the number is divisible by 19.
19 is a prime number.19 is a prime number.19 is a prime number.19 is a prime number.
19 is a whole number, so the answer is 19.
The number 19.
19
19 is a prime number.
K, or potassium, has a mass number of 19. Fluorine is a non metal element. Mass number of it is 19. No, mass number for potassium is not 19. That is the atomic number.
19 is a prime number.
19 is prime.
19 is a prime number