1997 is already prime; no tree.
The prime factorisation is 330 = 2*3*5*11.
330= 33 x 10 ^ ^ 3x11 2x5 330= 3x11x2x5
51 3,17
350=2x5x5x7
a prime factorization tree
33 11,3
Expressing a number as a "product of its prime factors" is also known as the prime factorization. To find the prime factorization, keep dividing a number by prime numbers until all the factors are prime. You can also use a factor tree or rainbow or fireworks or whichever method works best for you. Example: 330 330 165,2 55,3,2 11,5,3,2 2 x 3 x 5 x 11 = 330, expressed as a product of its prime factors.
The prime factorization of 97 is 97 itself, as it is a prime number and cannot be divided evenly by any other numbers. Therefore, there is no prime factorization tree for the number 97.
50 25,2 5,5,2
131 is already prime. No tree.
585 195,3 65,3,3 13,5,3,3