Read the article, "The Arecibo Message of November 1974", which is available from the instructor. Then answer the following questions:

How many bits (or characters) were in the message? What are the prime factors for this many bits?
What aspect of the design the design of the message that would indicate its 2-dimensional nature? (Hint: recall the previous question).
Suppose you have a message containing a string of ones and zeroes with the following number of bits: 529. Decompose this number into its prime factors, and suggest the dimensionality of the message contained therein.
Repeat the previous question for the following numbers of bits: 4087, 1009, 21889. You might find the following website helpful: http://www.rsok.com/~jrm/printprimes.html
Why would 120 be a poor choice for the number of bits for a 2-dimensional message?
Decode AND interpret the following message:
```
0000001110010000111000000
```