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arxiv: 1605.09213 · v1 · pith:FEZE3PB7new · submitted 2016-05-24 · 🧮 math.NT

Twelve new primitive binary trinomials

classification 🧮 math.NT
keywords primitivemersennetrinomialstwelveadditionbinarycompletescurrently
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We exhibit twelve new primitive trinomials over GF(2) of record degrees $42643801$, $43112609$, and $74207281$. In addition we report the first Mersenne exponent not ruled out by Swan's theorem - namely $57885161$ - for which no primitive trinomial exists. This completes the search for the currently known Mersenne prime exponents.

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