The composing law of odd integer numbers and odd prime numbers were revealed in the paper by giving the sieving equation of odd integer numbers.On the basis of these,a new simple sieving method for seeking prime number distribution was also put out.%通过给出奇合数的分解公式,揭示了奇合数与奇素数的构成规律,并在此基础上提出了寻求素数分布的一种简便易行的新筛法。
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