Respuesta :
Answer with explanation:
We know that the prime factorization of a number "n" is given by:
[tex]n=p_1\cdot p_2\cdot p_3\cdot p_4[/tex]
where [tex]p_i's[/tex] are distinct prime.
(a)
[tex]15[/tex]
It could be written as:
[tex]15=3\times 5[/tex]
Hence, the prime factors of this number are:
3 and 5.
(b)
21
It could be written as:
[tex]21=3\times 7[/tex]
Hence, the prime factors of this number are:
3 and 7.
(c)
38
It could be written as:
[tex]38=2\times 19[/tex]
Hence, the prime factors of this number are:
2 and 19.
(d)
42
It could be written as:
[tex]42=2\times 3\times 7[/tex]
Hence, the prime factors of this number are:
2 , 3 and 7.