20439th chen prime is 642487

20439th chen prime is 642487.

642487 is 20439th chen prime.

Learn more about Chen primes.

Neighbours#

641909₅	641929₇	641981₅	642011₅	642077₅
642149₄	642151₇	642197₅	642281₅	642359₅
642407₇	642419₄	642487₅	642527₆	642529₇
642557₆	642581₄	642701₅	642737₇	642779₄
642791₇	642797₆	642869₅	642881₇	642947₅

Compare with#

Learn more about Chen primes
Check first 1000 chen primes
Check chen primes up to 10000
Check all chen primes

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