### Today’s Puzzle:

A single rose can be an elegant expression of affection. This single rose is a level 5 puzzle. Can you find its factors?

Here’s the same puzzle without any added color:

### Two Factor Trees for 1590:

There are several possible factor trees for 1590. Here are two of them.

### Factors of 1590:

- 1590 is a composite number.
- Prime factorization: 1590 = 2 × 3 × 5 × 53.
- 1590 has no exponents greater than 1 in its prime factorization, so √1590 cannot be simplified.
- The exponents in the prime factorization are 1, 1, 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1)(1 + 1)(1 + 1) = 2 × 2 × 2 × 2 = 16. Therefore 1590 has exactly 16 factors.
- The factors of 1590 are outlined with their factor pair partners in the graphic below.

### More about the Number 1590:

1590 is the hypotenuse of FOUR Pythagorean triples:

138-1584-1590, which is **6** times (23-264-**265**),

576-1482-1590, which is **6** times (96-247-**265**)

840-1350-1590, which is **30** times (28-45-**53**),

954-1272-1590, which is (3-4-**5**) times **318**.