1993 AMC 8 Problem 3
Attempt Problem 3 of the 1993 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 1993 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
3.
Which of the following numbers has the largest prime factor?
Answer: B
Small hint:
Factor each number completely into primes
Big hint:
Compare the largest prime in each factorization; note
Solution:
Factoring: and
The largest prime factor among these is which is a factor of
Thus, the correct answer is B .
Problem 3 in other years
- 1985 AMC 8
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