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Contradiction between OEIS and factordb.com

By Sarah Scott
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OEIS A014545 says 1+13494## is a prime number but factordb.com says it is composite, where n## is the product of first n primes on factordb. Which is correct?

edit: Sorry if my question is not appropriate here. I found some small prime numbers of the form 1+n##, and looked them up in OEIS to find this number. Then I also looked it up in factordb and found that it says not a prime. I wondered if there was a mistake in the OEIS or factordb, so I asked this question. I want to know whether factordb or OEIS is correct.

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1 Answer

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Accoridng to PFGW, the number is $3$-PRP. This does not prove the primality but chances stand very good.

PFGW Version 4.0.1.64BIT.20191203.Win_Dev [GWNUM 29.8]
145823#+1 is 3-PRP! (120.3835s+0.0233s)
Done.

This number can be proven prime with the p-1-method. Perhaps someone does this.

UPDATE : The number passed a miller rabin test with $5$ random bases.

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