21723 in words: twenty-one thousand seven hundred twenty-three

21,723
In words

Twenty-one thousand seven hundred twenty-three

How 21,723 is built

Pattern: Thousands with a full three-digit final group

21,723 splits into 21 | 723. The final group “seven hundred twenty-three” contains hundreds and a hyphenated tens-and-ones ending.

Digit and place-value table

Digit Position Value Value in words
2 ten-thousands 20,000 twenty thousand
1 thousands 1,000 one thousand
7 hundreds 700 seven hundred
2 tens 20 twenty
3 ones 3 three

Reading the number in groups

Group Digits Reading
thousands 21 twenty-one thousand
final group 723 seven hundred twenty-three

Why 21,723 is written this way

Thousands with a full three-digit final group

21,723 splits into 21 | 723. The final group “seven hundred twenty-three” contains hundreds and a hyphenated tens-and-ones ending.

Group boundary: 21 | 723

The comma boundary separates 21 from 723: “twenty-one thousand” is read before “seven hundred twenty-three”.

Hyphenation

The spelling contains 2 hyphens. Each hyphen joins a tens word to a non-zero ones word inside the same two-digit group.

American English and “and”

The American English style used here normally omits “and” between “hundred” and the following tens or ones.

Number structure

  • 21,723 has 5 digits and 2 place-value groups.
  • Every digit position contributes a spoken value.
  • Its thousands group is 21; its final three-digit group is 723.