Difference between revisions of "1993 AJHSME Problems/Problem 3"
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C. The prime factor of <math>77</math> are <math>7</math> and <math>11</math>. Therefore, the largest prime factor is <math>11</math>. | C. The prime factor of <math>77</math> are <math>7</math> and <math>11</math>. Therefore, the largest prime factor is <math>11</math>. | ||
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+ | D. The prime factor of <math>91</math> are <math>7</math> and <math>13</math>. Therefore, the largest prime factor is <math>13</math>. | ||
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+ | E. The prime factor of <math>121</math> are <math>11</math>. Therefore, the largest prime factor is <math>11</math>. | ||
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+ | So, the answer is <math>B</math> | ||
==See Also== | ==See Also== |
Latest revision as of 14:27, 27 November 2022
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 factor of are
and
. Therefore, the largest prime factor is
.
D. The prime factor of are
and
. Therefore, the largest prime factor is
.
E. The prime factor of are
. Therefore, the largest prime factor is
.
So, the answer is
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.