### MAT 336 Stony Brook University Spring 2004

## 15-minute Quiz, February 12, 2004

Total score=10 points. Show all your work on this sheet.

- Plimpton 322 has in row 14, columns 2 and 3, the following two
numbers: 29:31 and 53:49 (in base-60 notation!). Use the Euclidean
algorithm to show that these numbers are relatively prime. You may use
decimal notation for your arithmetic.

- A certain interval of time is measured as 127hr 40 min 16.58sec.
This number involves three levels of base 10, base 60 and base 10
notation. Show exactly how and where this occurs.