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  2. Composite number - Wikipedia

    en.wikipedia.org/wiki/Composite_number

    [1] [2] Every positive integer is composite, prime, or the unit 1, so the composite numbers are exactly the numbers that are not prime and not a unit. [3] [4] E.g., the integer 14 is a composite number because it is the product of the two smaller integers 2 × 7 but the integers 2 and 3 are not because each can only be divided by one and itself.

  3. Fermat pseudoprime - Wikipedia

    en.wikipedia.org/wiki/Fermat_pseudoprime

    For a positive integer a, if a composite integer x divides a x−11, then x is called a Fermat pseudoprime to base a. [ 1 ] : Def. 3.32 In other words, a composite integer is a Fermat pseudoprime to base a if it successfully passes the Fermat primality test for the base a . [ 2 ]

  4. Number theory - Wikipedia

    en.wikipedia.org/wiki/Number_theory

    Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions.German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."

  5. Carmichael number - Wikipedia

    en.wikipedia.org/wiki/Carmichael_number

    The above definition states that a composite integer n is Carmichael precisely when the nth-power-raising function p n from the ring Z n of integers modulo n to itself is the identity function. The identity is the only Z n - algebra endomorphism on Z n so we can restate the definition as asking that p n be an algebra endomorphism of Z n .

  6. Additional Mathematics - Wikipedia

    en.wikipedia.org/wiki/Additional_Mathematics

    8.3 Vectors in a Cartesian Plane; 9) Solution of Triangles 9.1 Sine Rule; 9.2 Cosine Rule; 9.3 Area of Triangles; 9.4 Application of Sine Rule, Cosine Rule and Area of a Triangles; 10) Index Numbers 10.1 Index Number; 10.2 Composite Index; Form 5 1) Circular Measure 1.1 Radian; 1.2 Arc Length of a Circle; 1.3 Area of Sector of a Circle

  7. Prime knot - Wikipedia

    en.wikipedia.org/wiki/Prime_knot

    Knots that are not prime are said to be composite knots or composite links. It can be a nontrivial problem to determine whether a given knot is prime or not. A family of examples of prime knots are the torus knots. These are formed by wrapping a circle around a torus p times in one direction and q times in the other, where p and q are coprime ...

  8. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  9. Relation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Relation_(mathematics)

    As an example, "is less than" is a relation on the set of natural numbers; it holds, for instance, between the values 1 and 3 (denoted as 1 < 3), and likewise between 3 and 4 (denoted as 3 < 4), but not between the values 3 and 1 nor between 4 and 4, that is, 3 < 1 and 4 < 4 both evaluate to false.

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