19 and 11 are the two prime numbers that equal to 209.
There are no two primes whose sum is 209.
209 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 4 factors of 209 are 1, 11, 19, and 209.The factor pairs of 209 are 1 x 209 and 11 x 19.The proper factors of 209 are 1, 11, and 19 or,if the definition you are using excludes 1, they are 11 and 19.The prime factors of 209 are 11 and 19.The 2 distinct prime factors (listing each prime factor only once) of 209 are 11 and 19.The prime factorization of 209 is 11 x 19.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
No because it has more than two factors
As a product of its prime factors: 3*17 = 51
11 x 19 = 209
2 x 13 = 26
When you multiply two prime numbers together they become factors of the number that they equal. Since the number will have factors other than 1 and itself, the number cannot be prime.
It is impossible to write 90 as the product of two prime factors. 90 is equal to 2 x 32 x 5.
31 is equal to a prime number because it has only two factors
prime number
As aproduct of its prime factors: 19*101 = 1919