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The first RSA numbers generated, from RSA-100 to RSA-500, were labeled according to their number of decimal digits; later, however, beginning with RSA-576, binary digits are counted instead. An exception to this is RSA-617, which was created prior to the change in the numbering scheme.

1 The mathematics

Let n be a RSA Number. There are prime numbers p and q such that

The problem is to find these two primes, given only n.

Let s be ; then the values of some basic arithmetic functions are

2 The prizes and records

The following table gives an overview over all RSA numbers:

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Topics: RSA Number Numbers Usd''open Rsa Arjen Bonn Prime Security...

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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 RSA-130In mathematics, RSA-130 is one of the RSA numbers, large semiprimes that are part of the RSA Factoring Challenge. It was factored on April 10 1996 by a team led by Arjen K. Lenstra and comprised of Jim Cowie, Marije Elkenbracht-Huizing, Wojtek Furmanski, RSA-140In mathematics, RSA-140 is one of the RSA numbers, large semiprimes that are part of the RSA Factoring Challenge. It was factored on February 2 1999 by a team led by Herman te Riele and comprised of Stefania Cavallar, Bruce Dodson, Arjen K. Lenstra, Paul RSA-155In 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 RSA-160 RSA-576 RSA-129 RSA-150 RSA-100 RSA-110 RSA-120 RSA-640 RSA-704