The prime factorization of 1898 is:
$$ 1898 = 2\cdot13\cdot73 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 1898 can be written as 2 × 949. |
|
| 949 can be written as 13 × 73. |
|
| The end nodes are the prime factors of the number 1898. |
|