1 . 设
为给定的正整数.求所有正整数
,使得存在
,
,且
恰有
个不同的质因子.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d5ec9ad92f37e64eccce922ab1b14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e193953fa2ae4212325702c3037c78b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2 . (1)求证:存在无穷多个正整数
,使得
和
同时是合数;
(2)试判断,是否存在正整数
,使得对于任意正整数
,总有
和
之一为质数?并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4477c21464761f33f2868cc1a5ba793d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54ea1748b9fab39aa63880f8144d507.png)
(2)试判断,是否存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a550c916c64f621010e604a30ef67566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8e87146e09a898de1ba7bf63ab8eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9a5aa985e16243602f536c635cc8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247bbb2271c2b9dd93e9844dd820728b.png)
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3 . 求最小正整数
,使得任何
元正整数集合
中都有15个元素,其和能被15整除.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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4 . 已知
为大于3的素数,
的标准分解式为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f380a5ea829ed9f9d0e3d2e6f356b5aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081e26794e7692d8a748ab2424ebe408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40635d51204c58b25fd032c5d1cafbeb.png)
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5 . 求所有素数p,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63de2bc403dd111b66c524ae1843d1b1.png)
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6 . 已知正整数
满足
,
.令
,
,
.对任意的
,记
,其中,
表示不超过实数
的最大整数,
表示集合
中元素的个数.证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cd4f79207bdc49ec7d886d8686a973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ccfce220116839ee685f4106b87142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2aa77d86608e0fd19935621ebac6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee61b74dbb56f25a3d78e5da5177c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11e9d27ab71d3ed1869af70f032268e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a502ef923d7a4902efb846352cd755c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691ccd32650c6c63ed0c9c9edff53e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8279d9dd0b7750953cb9e2098b3b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11889a969b05bbedd96af799f6b57a67.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f27136cb1657de96135fa194a02521.png)
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7 . 是否存在增函数
,使得对正整数
(
且
),只要
为质数,就必定不可能有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e29fea3894506d5a18f73527fc9066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2b043b989216035c6fd985f1dd6a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d5ec9ad92f37e64eccce922ab1b14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6511aa361c699e2c54148076818b508b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6924a3c5a14a85bd073ba7caa31f33b.png)
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8 . 设
是质数,数列
满足
,
,且对任意非负整数
有
.若
是数列
中的项,试求
的所有可能值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba15ca3e5d1e8ebbb6040e14b9417801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381576e698a46df8c497e6b5f8346ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce27f95e98f608a9c0ecbdbed68fd37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29418e5014731850c55565b6bf47aa41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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9 . 对于整数
,是否存在正整数
及质数
,使得对任意正整数
,
中至少有一个是质数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f27f84764f1cca89ce3d93fc1cf603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d6765bcad6a338b3806c72af8d9b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32ecb988f5be21d7f8b97afbc0b3435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61110fe2bb7ed852622e9f47eb77353.png)
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10 . 试求出最小的正整数
,使得同时满足:
(1)
(
对表示不大于
的最大整数);
(2)
被190除所得的余数为11.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c5caf9beab7ba4fcdf1f86f399e0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ad0a6b7ce35651f24e55321543e35e.png)
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