yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Формула Мерсенна для поиска простых чисел #vertdider #veritasium


less than 1m read
·Nov 3, 2024

До тех пор все совершенные числа соответствовали формуле Евклида. Искать новые Удобнее всего было, находя новые p, при котором d в степени P - 1 - это простое число. Французский математик Марин Мерсен посвятил много времени изучению этого уравнения. В 1944 году он опубликовал книгу, которой привёл список 11 значений p, при которых получались простые числа. Те, для которых это оказалось верно, известны под названием "простые числа".

Семь из предложенных им значений p действительно дают совершенные числа, как раз первые семь из них. Но всё остальное, например, даже 2 в степени p - 1, по собственному признанию РСН, проверять не стал. Если проверять, простое ли число, состоящий из 15-2 цифр, никакого времени не хватит.

[Музыка]

More Articles

View All
Reversible reactions and equilibrium | High school chemistry | Khan Academy
Let’s imagine a reaction where we start with the reactants A and B, and they react to form the products C and D. Now, it turns out that in certain situations, the reaction could go the other way. You could start with C + D, and those could react to end up…
URGENT: Federal Reserve Freezes Rates, Stocks Decline, Housing Falls
What’s up, Graham? It’s guys here, and we’ve got some pretty serious news. After hitting some of the highest interest rates that we’ve seen since 2001, the Federal Reserve has officially made their decision today to pause the rate hike for the month of Se…
How to learn a language FAST and never forget it
Have you ever spent a significant amount of time learning a language only to forget it completely later? It’s a frustrating experience, but it’s all too common. Despite the effort it takes to learn a language, forgetting it can happen effortlessly. Luckil…
Why polls can be wrong
[Instructor] In previous lessons, we’ve talked about how polls and surveys are used to measure public opinion, but the important thing to recognize is that they are estimates of public opinion. Ideally, they’re done as scientifically as possible, as stati…
Mistakes when finding inflection points: not checking candidates | AP Calculus AB | Khan Academy
Olga was asked to find where f of x is equal to x minus two to the fourth power has inflection points. This is her solution. So we look at her solution, and then they ask us: Is Olga’s work correct? If not, what’s her mistake? So pause this video and see…
The Desire to Not Exist
Sleep is good; death is better. Yet surely never to have been born is best. These lines close a 17th-century poem by German writer Hinrich Hine. The piece is titled “Death and His Brother’s Sleep.” It compares these two states, suggesting that we experien…