604 in words

604 is written "six hundred four". British English inserts "and" before the final part, giving "six hundred and four"; American English leaves it out.

Where each word comes from

The same number, other ways

In words (US)

Six hundred four

In words (UK)

Six hundred and four

Ordinal

604th — six hundred fourth

Roman numeral

DCIV

Digits

604

Writing it on a cheque

On a cheque the amount line reads "Six hundred and four and 00/100" — or "Six hundred and four only" in Indian and much of Commonwealth practice. The fraction or the word "only" exists to stop anyone appending digits after what you wrote. Draw a line through any space left over for the same reason.