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Blum Blum Shub (B.B.S.) is a pseudorandom number generator proposed in 1986 by Lenore Blum, Manuel Blum and Michael Shub that is derived from Michael O. Rabin's one-way function. Blum Blum Shub takes the form
21 (twenty-one) is the natural number following 20 and preceding 22.
69 is the natural number following 68 and preceding 70. An odd number and a composite number, 69 is divisible by 1, 3, 23 and 69. 69 is a semiprime because it is a natural number that is the product of exactly two prime numbers, and an interprime between the numbers of 67 and 71. Because 69 is not divisible by any square number other than 1, it is categorised as a square-free integer. 69 is also a Blum integer since the two factors of 69 are both Gaussian primes. In number theory, 69 is a deficient number, arithmetic number and a congruent number.
77 (seventy-seven) is the natural number following 76 and preceding 78. Seventy-seven is the smallest positive integer requiring five syllables in English.
56 (fifty-six) is the natural number following 55 and preceding 57.
57 (fifty-seven) is the natural number following 56 and preceding 58.
58 (fifty-eight) is the natural number following 57 and preceding 59.
61 (sixty-one) is the natural number following 60 and preceding 62.
93 (ninety-three) is the natural number following 92 and preceding 94.
300 is the natural number following 299 and preceding 301.
400 is the natural number following 399 and preceding 401.
500 is the natural number following 499 and preceding 501.
700 is the natural number following 699 and preceding 701.
129 is the natural number following 128 and preceding 130.
In mathematics, a natural number n is a Blum integer if n = p × q is a semiprime for which p and q are distinct prime numbers congruent to 3 mod 4. That is, p and q must be of the form 4t + 3, for some integer t. Integers of this form are referred to as Blum primes. This means that the factors of a Blum integer are Gaussian primes with no imaginary part. The first few Blum integers are
193 is the natural number following 192 and preceding 194.
177 is the natural number following 176 and preceding 178.
249 is the natural number following 248 and preceding 250.
253 is the natural number following 252 and preceding 254.
888 is the natural number following 887 and preceding 889.
References
- 1 2 "Numbermatics: The Number Explorer". Numbermatics. Apr 30, 2024. Retrieved Apr 30, 2024.
- ↑ "Blum Number". PlanetMath. Apr 30, 2024. Retrieved Apr 30, 2024.
- ↑ Sloane, N. J. A. (May 1, 2024). "The On-Line Encyclopedia of Integer Sequences". OEIS. Retrieved May 1, 2024.
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