### Four Arizona Zip Codes Make BusinessWeek List

On 2 April 2007, BusinessWeek.com posted a "Special Report" titled: "The Richest Zip Codes-- and How They Got That Way." A list of 275 zip codes was sorted by state and four Arizona zip codes were found. [Note: There were no zip codes from other states whose names start with the letter 'A'.]

```   [source:BusinessWeek.com]
city             zip code   median price   prime factors
========================================================
Scottsdale         85262        \$  886,000    2,???,479
Scottsdale         85255        \$  835,000    5,17,17,59
Scottsdale         85259        \$  825,000    is prime
```
##### Exercises
1. The prime factors for `85253` are `______________`.

2. The prime factors for `85262` are `______________`.

3. Zip code 85259 is an off-by-one palindromic five-digit zip code. Explain.

##### Help... What's a Palindrome?

A palindrome is a word, phrase, number or other sequence of units that has the property of reading the same in either direction.