The prime factorization of 390 is:
$$ 390 = 2\cdot3\cdot5\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
390 can be written as 10 × 39. |
|
10 can be written as 2 × 5. |
|
39 can be written as 3 × 13. |
|
The end nodes are the prime factors of the number 390. |
|