Difference between revisions of "1993 AJHSME Problems/Problem 3"
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Revision as of 23:10, 4 July 2013
Problem
Which of the following numbers has the largest prime factor?
Solution
A. The prime factors of 
are 
and 
. Therefore, the largest prime factor is .
B. The prime factors of 
are and 
. Therefore, the largest prime factor is .
C. The prime factors of 
are 
and 
. Therefore, the largest prime factor is .
D. The prime factors of 
are and . Therefore, the largest prime factor is .
E. The only prime factor of 
is . This makes the largest prime factor of this number.
Since we are looking for the number with the largest prime factor, the correct answer would be 
.
See Also
| 1993 AJHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 2 |
Followed by Problem 4 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AJHSME/AMC 8 Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
