In how many ways can 10001 be written as the sum of two prim
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In how many ways can 10001 be written as the sum of two primes?
![In how many ways can 10001 be written as the sum of two prim](/uploads/image/z/16045863-15-3.jpg?t=In+how+many+ways+can+10001+be+written+as+the+sum+of+two+prim)
10001写成两个质数之和形式:
这题很简单,两个质数,首先我们知道质数除了2以外全部都是奇数,两个奇数相加必等于一个偶数,而这里10001是奇数,所以有一个质数必定为2.
所以只有可能为 2 + 9999 = 10001,但是 9999明显不是质数.连唯一的可能都不成立.故答案为:没有可能(none)
这题很简单,两个质数,首先我们知道质数除了2以外全部都是奇数,两个奇数相加必等于一个偶数,而这里10001是奇数,所以有一个质数必定为2.
所以只有可能为 2 + 9999 = 10001,但是 9999明显不是质数.连唯一的可能都不成立.故答案为:没有可能(none)
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