• Thumbnail for Euler's totient function
    also referred to as Euler's totient function, the Euler totient, or Euler's totient. Jordan's totient is a generalization of Euler's. The cototient of n...
    44 KB (6,519 words) - 10:08, 18 July 2025
  • denotes Euler's totient function; that is a φ ( n ) ≡ 1 ( mod n ) . {\displaystyle a^{\varphi (n)}\equiv 1{\pmod {n}}.} In 1736, Leonhard Euler published...
    9 KB (1,149 words) - 18:09, 9 June 2024
  • Thumbnail for Carmichael function
    totient function, and the least universal exponent function. The order of the multiplicative group of integers modulo n is φ(n), where φ is Euler's totient...
    22 KB (3,133 words) - 07:53, 22 May 2025
  • number theory, the totient summatory function Φ ( n ) {\displaystyle \Phi (n)} is a summatory function of Euler's totient function defined by Φ ( n )...
    3 KB (637 words) - 06:01, 11 July 2025
  • Jordan's totient function is a generalization of Euler's totient function, which is the same as J 1 ( n ) {\displaystyle J_{1}(n)} . The function is named...
    6 KB (921 words) - 23:26, 28 January 2025
  • where ϕ {\displaystyle \phi } is Euler's totient function, than any integer smaller than it. The first few highly totient numbers are 1, 2, 4, 8, 12, 24...
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  • Thumbnail for List of topics named after Leonhard Euler
    been given simple yet ambiguous names such as Euler's function, Euler's equation, and Euler's formula. Euler's work touched upon so many fields that he is...
    15 KB (1,744 words) - 05:10, 21 July 2025
  • Thumbnail for Gaussian integer
    number of its elements shall be denoted by ϕ(z) (analogously to Euler's totient function φ(n) for integers n). For Gaussian primes it immediately follows...
    35 KB (4,835 words) - 07:01, 5 May 2025
  • λ(n) is equal to the Euler totient function of n; for powers of 2 greater than 4 it is equal to one half of the Euler totient function of n: λ ( n ) = {...
    53 KB (7,555 words) - 01:12, 6 April 2025
  • Thumbnail for Modular arithmetic
    then ap−1 ≡ 1 (mod p). Euler's theorem: If a and m are coprime, then aφ(m) ≡ 1 (mod m), where φ is Euler's totient function. A simple consequence of...
    29 KB (3,646 words) - 23:20, 20 July 2025
  • Thumbnail for Euler's constant
    Bessel functions. Asymptotic expansions of modified Struve functions. In relation to other special functions. An inequality for Euler's totient function. The...
    71 KB (9,615 words) - 00:19, 25 July 2025
  • In mathematics, Carmichael's totient function conjecture concerns the multiplicity of values of Euler's totient function φ(n), which counts the number...
    8 KB (839 words) - 17:54, 27 March 2024
  • {\displaystyle n=pq} (with p ≠ q {\displaystyle p\neq q} ) the value of Euler's totient function φ ( n ) {\displaystyle \varphi (n)} (the number of positive integers...
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  • following 899 and preceding 901. It is the square of 30 and the sum of Euler's totient function for the first 54 positive integers. In base 10, it is a Harshad...
    30 KB (3,867 words) - 20:09, 29 June 2025
  • mathematics In mathematics, Lehmer's totient problem asks whether there is any composite number n such that Euler's totient function φ(n) divides n − 1. This is...
    5 KB (529 words) - 20:01, 22 January 2025
  • {p^{\alpha }}},} where ϕ ( n ) {\displaystyle \phi (n)} is the Euler's totient function. The Euler numbers grow quite rapidly for large indices, as they have...
    11 KB (2,049 words) - 16:16, 13 May 2025
  • elements, no two elements of R are congruent modulo n. Here φ denotes Euler's totient function. A reduced residue system modulo n can be formed from a complete...
    3 KB (351 words) - 19:42, 29 April 2024
  • theory, a perfect totient number is an integer that is equal to the sum of its iterated totients. That is, one applies the totient function to a number n...
    5 KB (668 words) - 03:19, 19 October 2024
  • nontotient is a positive integer n which is not a totient number: it is not in the image of Euler's totient function φ, that is, the equation φ(x) = n has no solution...
    7 KB (663 words) - 17:27, 30 June 2025
  • Thumbnail for Prime number
    the number 1: for instance, the formulas for Euler's totient function or for the sum of divisors function are different for prime numbers than they are...
    117 KB (14,179 words) - 23:31, 23 June 2025
  • Thumbnail for Farey sequence
    > 1. From this, we can relate the lengths of Fn and Fn−1 using Euler's totient function φ(n): | F n | = | F n − 1 | + φ ( n ) . {\displaystyle |F_{n}|=|F_{n-1}|+\varphi...
    41 KB (5,080 words) - 17:52, 20 July 2025
  • Thumbnail for Fibonacci sequence
    its conjugate. The related function z ↦ − s ( − 1 / z ) {\textstyle z\mapsto -s\left(-1/z\right)} is the generating function for the negafibonacci numbers...
    85 KB (12,946 words) - 13:00, 24 July 2025
  • Thumbnail for Phi
    equal to φ − 1.) Euler's totient function φ(n) in number theory; also called Euler's phi function. The cyclotomic polynomial functions Φn(x) of algebra...
    14 KB (1,703 words) - 17:40, 6 July 2025
  • Thumbnail for Power of 10
    omega functions Almost prime Semiprime Euler's totient function Highly cototient Highly totient Noncototient Nontotient Perfect totient Sparsely totient Aliquot...
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  • also highly totient, as is 576, the square of 24. While 17 different integers have a totient value of 72, the sum of Euler's totient function φ(x) over...
    15 KB (2,071 words) - 18:38, 11 July 2025
  • Thumbnail for Dirichlet convolution
    Dirichlet convolution (category Arithmetic functions)
    ϕ ∗ 1 = Id {\displaystyle \phi *1={\text{Id}}} , proved under Euler's totient function. ϕ = Id ∗ μ {\displaystyle \phi ={\text{Id}}*\mu } , by Möbius...
    16 KB (2,587 words) - 06:05, 30 April 2025
  • the origin (zero point) Sigma function: Sums of powers of divisors of a given natural number. Euler's totient function: Number of numbers coprime to (and...
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  • Thumbnail for Dihedral group
    g., multiplying rotations by 3. Compare the values 6 and 4 for Euler's totient function, the multiplicative group of integers modulo n for n = 9 and 10...
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  • /n}\right)} whose degree is ϕ ( n ) {\displaystyle \phi (n)} , Euler's totient function at n {\displaystyle n} . Then, the splitting field over Q {\displaystyle...
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  • numbers. 266 is a nontotient number which is an even number not in Euler’s totient function. 266 is an inconsummate number. "Facts about the integer". Wolfram...
    1 KB (88 words) - 06:50, 24 January 2025