Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

List of Known Mersenne Prime Numbers

Orcad License Cost Jun 2026

Prices estimated as of 2025. For a formal quote, contact a Cadence authorized distributor.

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Tip: If your company has a subsidiary in a lower-cost region, you cannot legally transfer a license purchased there to the US. Cadence enforces regional activation. Prices estimated as of 2025

Understanding the cost of OrCAD (now part of the Cadence design ecosystem) is notoriously difficult because the company does not publish a standard price list. Pricing is highly modular and depends on your industry, team size, and specific engineering needs. follow this path to avoid overpaying:

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Distribution graph of Mersenne Primes found by GIMPS

These sites may provide additional details on the list of known Mersenne Prime Numbers: