The prime factorization of 441 is:
$$ 441 = 3\cdot3\cdot7\cdot7 $$Which is the same as :
$$ 441 = 3^{2}\cdot7^{2} $$Prime factorization can be nicely visualized by creating a factorization tree.
441 can be written as 3 × 147. |
|
147 can be written as 3 × 49. |
|
49 can be written as 7 × 7. |
|
The end nodes are the prime factors of the number 441. |
|