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Country and language: Australia

Country and language

998 in words

998

nine hundred and ninety-eight

998 is written nine hundred and ninety-eight.

Ways to write it

As an ordinal
nine hundred and ninety-eighth
Roman numeral
CMXCVIII
Expanded form
900 + 90 + 8

Place value

PlaceDigitValue
hundreds9900
tens990
ones88

Number facts

Even or odd
Even
Prime or composite
Composite
Factors
1, 2, 499 and 998 (4 factors)
First 10 multiples
998, 1,996, 2,994, 3,992, 4,990, 5,988, 6,986, 7,984, 8,982, 9,980
Square
998 × 998 = 996,004
Square root
≈ 31.59
Sum of the digits
9 + 9 + 8 = 26
Rounded to the nearest 10
1,000
Rounded to the nearest 100
1,000
Number before
997
Number after
999
In binary
1111100110

Quick check

  1. What number comes just after 998?

    Show the answer

    999

  2. Is 998 even or odd?

    Show the answer

    Even

  3. What is 998 + 10?

    Show the answer

    1,008

Practise with a game

Frequently asked questions

How do you write 998 in words?

998 is written "nine hundred and ninety-eight".

Is 998 a prime number?

No. 998 is a composite number, because it has more than two factors.

What are the factors of 998?

The factors of 998 are 1, 2, 499 and 998.

How do you write 998 in Roman numerals?

998 in Roman numerals is CMXCVIII.