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In mathematics, RSA-155 is one of the RSA numbers, large semiprimes that are part of the RSA Factoring Challenge. It was factored on August 22 1999 by a team led by Herman te Riele and comprised of Stefania Cavallar , Bruce Dodson , Arjen K. Lenstra , Walter Lioen , Peter L. Montgomery , Brian Murphy , Karen Aardal , Jeff Gilchrist , Gerard Guillerm , Paul Leyland , Joel Marchand , Francois Morain , Alec Muffett , Craig Putnam , Chris Putnam and Paul Zimmermann .

The factorization of RSA-155 is as follows:

RSA-155 = 109417386415705274218097073220403576120037329454492059909138421314763499842889 34784717997257891267332497625752899781833797076537244027146743531593354333897 RSA-155 = 102639592829741105772054196573991675900716567808038066803341933521790711307779 * 106603488380168454820927220360012878679207958575989291522270608237193062808643

The factorisation was found using the Number Field Sieve algorithm and an estimated 8000 MIPS-year s of computing time.

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RSAThis article is about the RSA cryptosystem. For other meanings, see RSA (disambiguation). RSA is a cipher algorithm. It is an asymmetric algorithm and plays a key role in public key cryptography. It is widely used in electronic commerce protocols. The alg	RSA SecurityRSA Security is a NASDAQ-traded public company. Its headquarters are in Bedford, Massachusetts, and it maintains offices in Ireland, the United Kingdom, Singapore, and Japan. The company currently known as "RSA Security" was formerly known as Security Dyn	RSA numberThe RSA numbers listed by security company RSA Security, are certain large semiprime numbers (i. numbers with exactly two prime factors); they form the basis of the RSA Factoring Challenge, in which factorisations for these numbers are sought. Cash prizes
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