2003 AMC 8 Problem 2

Attempt Problem 2 of the 2003 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2003 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

2.

Which of the following numbers has the smallest prime factor?
5555
5757
5858
5959
6161
Answer: C
Concepts:primeparity
Small hint:
Look for a number with prime factor 2.2.
Big hint:
Among the choices, only one is even.
Solution:
Note that the smallest prime number is 2.2. This means that any even number would be our answer.
Thus, C is the correct answer.
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