The positive integer k has exactly two positive prime factors, 3 and 7. If k has a total of 6 positive factors, including 1 and k, what is the value of k ?
(1)3^2 is a factor of K
(2)7^2 is not a factor of K
Ans:D
要如何推出答案?
PP-T1-DS131
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PP-T1-DS131
由 Huang Hsin-Yi » 2008-03-13 15:51
131. 13306-!-item-!-187;#058&009213
The positive integer k has exactly two positive prime factors, 3 and 7. If k has a total of 6 positive factors, including 1 and k, what is the value of k ?
(1)3^2 is a factor of K
(2)7^2 is not a factor of K
Ans:D
要如何推出答案?
The positive integer k has exactly two positive prime factors, 3 and 7. If k has a total of 6 positive factors, including 1 and k, what is the value of k ?
(1)3^2 is a factor of K
(2)7^2 is not a factor of K
Ans:D
要如何推出答案?
- Huang Hsin-Yi
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