Commutative algebra | Articles containing proofs | Modular arithmetic | Theorems in number theory

Chinese remainder theorem

In mathematics, the Chinese remainder theorem states that if one knows the remainders of the Euclidean division of an integer n by several integers, then one can determine uniquely the remainder of the division of n by the product of these integers, under the condition that the divisors are pairwise coprime (no two divisors share a common factor other than 1). For example, if we know that the remainder of n divided by 3 is 2, the remainder of n divided by 5 is 3, and the remainder of n divided by 7 is 2, then without knowing the value of n, we can determine that the remainder of n divided by 105 (the product of 3, 5, and 7) is 23. Importantly, this tells us that if n is a natural number less than 105, then 23 is the only possible value of n. The earliest known statement of the theorem is by the Chinese mathematician Sun-tzu in the Sun-tzu Suan-ching in the 3rd century CE. The Chinese remainder theorem is widely used for computing with large integers, as it allows replacing a computation for which one knows a bound on the size of the result by several similar computations on small integers. The Chinese remainder theorem (expressed in terms of congruences) is true over every principal ideal domain. It has been generalized to any ring, with a formulation involving two-sided ideals. (Wikipedia).

Chinese remainder theorem
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The Chinese Remainder Theorem

The Chinese Remainder Theorem for RSA Previous video: https://youtu.be/WrVXuneadH8 Next video: https://youtu.be/9e8uQ4BhSPg

From playlist RSA

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Number Theory | A Generalization of the Chinese Remainder Theorem

We give a generalization of the Chinese Remainder Theorem to the case when the moduli are not relatively prime. http://www.michael-penn.net

From playlist Number Theory

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Number Theory | Chinese Remainder Theorem: Example 1

We use the construction outlined in the proof of the Chinese Remainder Theorem to solve a system of linear congruences. http://www.michael-penn.net

From playlist Number Theory

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Chinese Remainder Theorem

Chinese Remainder Theorem (in Basic Number Theory) Statement of the theorem and how to use it to solve for some x (mod m*n) given x = a (mod m) and x = b (mod n). Questions? Feel free to post them in the comments and I'll do my best to answer!

From playlist Number Theory

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Number Theory: Part 2: Chinese Remainder Theorem

Chinese Remainder Theorem is presented. Discrete Logarithms are analyzed.

From playlist Network Security

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Number Theory: Chinese Remainder Theorem

Introduction to the Chinese Remainder Theorem

From playlist Basics: Number Theory

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What is the remainder theorem for polynomials

👉 Learn about the remainder theorem and the factor theorem. The remainder theorem states that when a polynomial is divided by a linear expression of the form (x - k), the remainder from the division is equivalent to f(k). Similarly, when a polynomial is divided by a linear expression of th

From playlist Remainder and Factor Theorem | Learn About

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Theory of numbers: Congruences: Chinese remainder theorem

This lecture is part of an online undergraduate course on the theory of numbers. We describe the Chinese remainder theorem, which can be used to reduce problems about congruences to problems about congruences modulo prime powers. We give a few applications, including a sharper version of

From playlist Theory of numbers

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Proof that the Totient Function is Multiplicative

Coprime numbers mod n: https://youtu.be/SslPWR2N5jA Chinese remainder theorem: https://www.youtube.com/playlist?list=PL22w63XsKjqyg3TEfDGsWoMQgWMUMjYhl Surjection and bijection: https://youtu.be/kt5eABzTVGQ Explanation of why Euler's totient function of a product of coprime numbers is e

From playlist Modular Arithmetic

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For any positive integer n, there exist n consecutive integers none of which is a prime power

We show the proof, through construction using Chinese remainder theorem, of the fact that, for any positive integer n, there exist n consecutive positive integers none of which is an integral power of a prime number. Check out wiki for Chinese Remainder Theorem https://en.wikipedia.org/w

From playlist Elementary Number Theory

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Introduction to number theory lecture 13. The Chinese remainder theorem.

This lecture is part of my Berkeley math 115 course "Introduction to number theory" For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8 This lecture covers the Chinese remainder theorem. The textbook is "An introduction to the

From playlist Introduction to number theory (Berkeley Math 115)

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Untold connection: Lagrange and ancient Chinese problem

Lagrange interpolating polynomial and an ancient Chinese problem is actually connected! It is a surprising connection, and a very inspiring one at the same time. It tells us that Mathematics has much more to discover! Lagrange interpolating polynomial is normally see as a statistical meth

From playlist Modular arithmetic

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Foundations - Seminar 11 - Gödel's incompleteness theorem Part 3

Billy Price and Will Troiani present a series of seminars on foundations of mathematics. In this seminar Will Troiani continues with the proof of Gödel's incompleteness theorem, discussing Gödel's beta function and the role of the Chinese Remainder theorem in the incompleteness theorem. Y

From playlist Foundations seminar

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Chinese Remainder Theorem and Geometry of Unipotents - Feb 12, 2021- Rings and Modules

In this video we prove a version of the chinese remainder theorem and explain how unipotent elements are related to connected components of schemes.

From playlist Course on Rings and Modules (Abstract Algebra 4) [Graduate Course]

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Lecture 8 - Congruences

This is Lecture 8 of the CSE547 (Discrete Mathematics) taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Stony Brook University in 1999. The lecture slides are available at: http://www.cs.sunysb.edu/~algorith/math-video/slides/Lecture%2001.pdf More information may

From playlist CSE547 - Discrete Mathematics - 1999 SBU

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Number Theory | Chinese Remainder Theorem: Example 3

We solve a system of linear congruences using the method outline in the proof of the Chinese Remainder Theorem. http://www.michael-penn.net

From playlist Number Theory

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Introduction to number theory lecture 28. Products of groups

This lecture is part of my Berkeley math 115 course "Introduction to number theory" For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8 We define products of groups, and rephrase some earlier results in terms of these products.

From playlist Introduction to number theory (Berkeley Math 115)

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