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Primes p for which p − 2 has an odd number of prime factors
Prove that for infinitely many primes p, the number p − 2 has an odd number of prime factors counted with multiplicity.
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Prove that for infinitely many primes p, the number p − 2 has an odd number of prime factors counted with multiplicity.
选两个分支看看改了什么，再发起 PR 把工作带过去。
PR 可以从任何一个分支合入任何另一个分支。