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  • can I tell you about a new number?

  • So it's very scary.

  • Numbers of the evil.

  • It's Belle figures Prime.

  • Okay, so Belphegor.

  • One of the seven princes of hell and the reason that seven princes is because their course seven deadly sins.

  • He's also Hell's ambassador to France.

  • I didn't know how I'd had ambassadors to different countries.

  • Make sure what the Hell's Ambassador to England is right.

  • But anyway, so what is fell?

  • Figures a prime.

  • Okay, so let's say that she hasn't a bit one.

  • So this number here is that Belle figures prime, so you can already see the evil lurking within their number of the beast.

  • 666 since square in the middle.

  • But it's even more evil in this.

  • Their teen zeros on either side of the 666 course, their team being classic on looking number on.

  • The other thing that's evil about this is that there's actually 31 digits and of course, there do you want it's 13 backwards, isn't it?

  • So this is This is a fundamentally evil number.

  • It's one of their larger class of numbers, which he called the belphegor numbers.

  • So a bell figure number is basically anything so be event.

  • So the ants belphegor number is a one with and zeros 666 and then another end zeros on then I want Okay, So any belphegor number is this form You want to be fancy about it and writer a nice formula for the formal.

  • It you would write is this is 10 for the n plus three plus 6 +66 times 10 to the M plus one plus one.

  • These are the Balfa ginormous now the vast majority of them and not prime.

  • Okay, so which ones are prime?

  • Well, of course, For an equals 13 it's a prime number because that's our classic belphegor Prime n equals zero is also a prime number.

  • So that's of course, this guy right?

  • And this is also very so this is another example of a belphegor prime.

  • This is the classic one, but this is another one, and this is quite interesting as well for other reasons s So this is the 1928th prime number.

  • Okay, so this is prime index, And if you take the longest from here and add them together so one plus six plus six for six plus one.

  • Well, that's 20.

  • And you take these numbers and you happen to get there, like one plus nine plus two plus eight.

  • Well, that's also 20.

  • So that's where it Okay, that's that's 10 years, that is, do you reckon?

  • Okay, well, let's not start.

  • We're gonna get more tenuous, Brady.

  • That so?

  • This is all.

  • So this one here is that this particular Belphegor prime is also a Republican Prime.

  • A Republican plan Prime is any number which is essentially primed to the rights.

  • Okay, so it could be a Republican prime in England's basically a Tory prime.

  • It's prime to the right.

  • So you take the right hand side of the number, not count in the middle.

  • So in this case here, 61 that's a prime number.

  • So it's kind of a coincidence that then what it says about Donald Trump, but this'll belphegor prime is also a Republican primary.

  • We'll leave you to speculate on that.

  • You get democratic.

  • Do you get them?

  • A great you, actually.

  • Do you do?

  • That's of course, if you take it to the left.

  • Yes, because this is not am this is clearly not a democratic frame, because 16 not not prime number.

  • Okay, this set of numbers, these belphegor numbers on belphegor primes were discovered by the famous prime number hunter Harvey Dublin, who is basically was It is.

  • It is a diameter number theorist.

  • He built a massive computer in his garret with his son on Dhe.

  • He just hunts for prime numbers on Dhe.

  • This was one of the vans axes that he shoved into his computer to see if he could find examples of of a prime number.

  • He came up with this one.

  • There are a few others.

  • There are more off this leak.

  • Any calls?

  • 42 is one, which is very interesting because that's of course, the the meaning of life.

  • Right?

  • N equals 506 is the next one on.

  • It's a whole tower of these.

  • Okay.

  • Are there an infinite number?

  • Well, we don't know, And the reason we definitely don't know is because this is an example of a palindrome IQ prime.

  • It obviously looks the same forward backwards.

  • We don't know if they were an infinite number of palindrome it prime.

  • So we sat down.

  • It was in the infinite number of belphegor primes.

  • It's also a naughty prime, obviously not just because it's Belle figure.

  • It's a naughty prime, and North Sea Prime is one that has more North's or zeroes than than any other number.

  • And of course, this example does.

  • So it's it's also Northey Prime Naughty Prize.

  • Yeah, they're very cool.

  • Or else it's lots of things.

  • It's a beastly prime.

  • Okay, so Beastly Prime is one that has a 666 And now this one has in a very special place right in the middle, Right, that a B C prime is one that has 666 So, for example, another beastly prime is this 1666126669 is Beastly Prime his old bunch of these as well, there's loads of these beastly prime.

  • Anything with with 666 in it.

  • We're not finished yet.

  • If you want to know even Maura about this evilness, check out the extra video on number five to this is, I think, quite scary as well on this one.

  • Hasn't got a name as far as I know, and they'll be bit of a twist.

  • I didn't want this to be all about evil, right?

  • So I thought we should tried to redress the balance with a very good.

  • But if you'd like to know more about 666 itself, of course.

  • We've done a video about that in the past checkout links on the screen and down in the video description.

can I tell you about a new number?

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最邪惡的數字 - Numberphile (The Most Evil Number - Numberphile)

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    林宜悉 發佈於 2021 年 01 月 14 日
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