2000 (number)
natural number
2000 (two thousand) is a natural number following 1999 and preceding 2001.
In mathematics
2000 is:
the highest number expressible using only two unmodified characters in Roman numerals (MM)
an Achilles number
smallest four digit eban number
the sum of all the nban numbers (sequence A008537 in the OEIS)
Selected numbers in the range 2001–2999
2001 to 2099
2002
2002 = 2 × 7 × 11 × 13. It is a palindromic number in decimal, base 76, 90, 142, and 11 other non-trivial bases.
2003
2003 is a Sophie Germain prime.
2005
2005 = 5 × 401. It is a vertically symmetric number.
2011
2011 is a sexy prime with 2017. It is also the sum of eleven consecutive primes: 2011 = 157 + 163 + 167 + 173 + 179 + 181 + 191 + 193 + 197 + 199 + 211
2015
2015 = 5 × 13 × 31. It is a Lucas–Carmichael number.
2016
2016 = 25 × 32 × 7.
“2000 (number)” enters the record as natural number. Crown Archives preserves that source wording while asking what number and natural can confirm, complicate or overturn.
Why this record matters
“2000 (number)” is worth following because a concise public description often conceals a longer documentary argument. Here, number and natural provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q241253. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2000, 1999, 2001 and 2099.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “2000 (number)”, its source revision and the description used here.
- Expand the search: follow 2000 (number) primary sources, 2000 (number) archive and number research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “2000 (number)”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “2000 (number)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.