Talk:666 (number)

Way too much stuff

Okay, this is just ridiculous. Some of this is marginally interesting, but honestly, saying what Alt-666 will get you? Why not add what Unicode character 666 is? (There isn't one; it skips straight from 601 to 710.) Or how about adding what day of the week June 6, 1966 was? (It was a Monday.) I mean, come on! I'm considering the removal of:

• All "the 666th X is Y", like "The 666th non square-free number is 1701." This is not a mathematical property of 666.
• Stupidly obvious stuff, like "666 is the 333rd even number".
• The entries about $6^{6^{6}}$ and Ü.

Any opinions? If nobody objects, I'll just delete the stuff, and narrow the entry down mostly to legitimate mathematical properties. —Simetrical 20:17, 28 Jan 2005 (UTC)

I agree with you, but it seems you never got around to this. Since nobody has responded to this. I will leave it a couple of days to give people time to object, then do it myself. --JiFish(Talk/Contrib) 20:47, 2 Jun 2005 (UTC)

Hold on, it appears that some of this stuff has gone and some new junk has crept in. --JiFish(Talk/Contrib) 20:50, 2 Jun 2005 (UTC)

userbox for people obsessed with 666

{{User:Java7837/Userboxing/User 666thian}}

666	This user is a 666thian; he or she sees the number 666 everywhere. ((view))

—Preceding unsigned comment added by Java7837 (talk • contribs)

It turns out that φ(666) = 6³ also holds in base 11

Let's see, 666₁₁ = 798, and φ(798) = 216. Wow!

More generally, φ(kkk_b) = φ(k(b²+b+1)) = k³ has the following solutions (b,k) for b ≥ 2, 1 ≤ k ≤ b-1: (10, 6), (11, 6), (63, 36), (64, 36), (79, 42), (84, 48), (118, 60), (137, 72), (165, 84), (277, 144), (502, 288), (934, 480), (2180, 1080), (2832, 1512), (2986, 1512), (3032, 1440), (3315, 1764), (3448, 1764), (4185, 2160), (4799, 2160), (5111, 2808), ... Must k be a multiple of 6? How many solutions can have the same k value? 129.104.241.35 (talk) 18:45, 17 October 2024 (UTC)

 Done Arijith Fern (talk) 19:44, 28 August 2025 (UTC)

Relation of the number 666 to the 39

While (15^2)+(21^2) = 666 and 15+21 = 36 — the secret value of 666, 15 and 21 form the digits of 1,521 — Square of 39 (number) which is why certain numerologists consider the number 39 to be uninteresting number.2605:8D80:523:B21F:75EC:2C6A:612A:80A2 (talk) 20:08, 19 April 2025 (UTC)

This makes no more sense here than it did in the article. Meters (talk) 20:25, 19 April 2025 (UTC)

OK. But that’s one fact from MROB.com 2605:8D80:525:34A4:AD01:874D:9722:2E73 (talk) 16:28, 20 April 2025 (UTC)

 Not done Arijith Fern (talk) 19:44, 28 August 2025 (UTC)

Like 777, 666 is a congruent number?

443556 = 46656 + 396900 → 666² = 216² + 630².

Therefore, 666 is a congruent number if 216 is A and B is 630

184.145.2.165 (talk) 00:34, 26 May 2025 (UTC)

Yes, it's congruent number, but we don't need to mention 777. Meters (talk) 22:09, 28 May 2025 (UTC)

 Done Arijith Fern (talk) 19:36, 28 August 2025 (UTC)

A number that is part of a Pythagorean triple is not necessarily a congruent number. What makes a number a congruent number is that it is the area of ​​a right-angled triangle whose sides form a Pythagorean triple. The number 666 does not meet this condition. אביתרג (talk) 04:53, 7 August 2026 (UTC)