That's called the prime factorization.
2x2x3x3x3
As a product of its prime factors: 2*2*19 = 76
As a product of its prime factors: 2*3*5*7 = 210
38 = 2 * 19
As a product of its prime factors in exponents: 22*3*52 = 300
A number as a product of prime numbers would be "x".
2x2x2x3
2x2x3x5
2x2x3x3x3
As a product of its prime factors: 2*2*19 = 76
Prime factorization of 27 = 3x3x3
2x2x2x2x3x3=144
As a product of its prime factors: 2*3*5*7 = 210
7*3*3
38 = 2 * 19
13*3
2 x 29