-
semiprime is a
natural number that is the
product of
exactly two
prime numbers. The two
primes in the
product may
equal each other, so the
semiprimes...
-
number following 3 and
preceding 5. It is a
square number, the
smallest semiprime and
composite number, and is
considered unlucky in many East
Asian cultures...
- mathematics,
semiprime ideals and
semiprime rings are
generalizations of
prime ideals and
prime rings. In
commutative algebra,
semiprime ideals are also...
- twenty-seventh
distinct semiprime and the
second of the form (7.q),
where q is a
higher prime. the
aliquot sum of 91 is 21;
itself a
semiprime,
within an aliquot...
- the 4th
centered nonagonal number. 55 is also the 19th
semiprime and the 15th
squarefree semiprime, as well as the 32nd
nontotient number (including odd...
- and 29,
making it a
semiprime. 58 is not
divisible by any
square number other than 1,
making it a square-free
integer A
semiprime that is not
square numbers...
-
semiprime ( 2 × 23 {\displaystyle 2\times 23} ) and the
eighth of the form (2.q),
where q is a
higher prime, with an
aliquot sum of 26; a
semiprime,...
- the 11th
discrete Semiprime, it
being the 7th of the form (2.q). the
first member of the
third cluster of two
discrete semiprimes 38, 39 the next such...
-
triangular numbers,
making it a
tetrahedral number. 35 is the 10th
discrete semiprime ( 5 × 7 {\displaystyle 5\times 7} ) and the
first with 5 as the lowest...
- 40. 39 is the 12th
distinct semiprime and the 4th in the (3.q) family. It is the last
member of the
third distinct semiprime pair (38,39). 39 has an aliquot...
