Henri de Saint Germain died on 1951-12-19.
Rolland-Germain Ecological Reserve was created on 1991-06-19.
A prime number that is one more than a square number is known as a Sophie Germain prime. Sophie Germain primes are of the form 2p+1, where p is a prime number. For example, 17 is a Sophie Germain prime because it is one more than the square of 4, and both 4 and 17 are prime numbers. Sophie Germain primes have applications in number theory and cryptography.
19 is a prime.
19 is a prime number, so it has no prime factorization.
19 is prime.
19 is already prime.
19 is the prime number.
19 is a prime number.19 is a prime number.19 is a prime number.19 is a prime number.
19 is a prime number, so its prime factorization is 1 x 19 or simply 19.
19 is prime. 1 and 19.
19 is a prime factor.