The prime factorization of 1365 is:
$$ 1365 = 3\cdot5\cdot7\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 1365 can be written as 5 × 273. |
|
| 273 can be written as 3 × 91. |
|
| 91 can be written as 7 × 13. |
|
| The end nodes are the prime factors of the number 1365. |
|