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24 in words

24

twenty-four

24 is written twenty-four.

Ways to write it

As an ordinal: twenty-fourth
Roman numeral: XXIV
Expanded form: 20 + 4

Place value

Place	Digit	Value
tens	2	20
ones	4	4

Number facts

Even or odd: Even
Prime or composite: Composite
Factors: 1, 2, 3, 4, 6, 8, 12 and 24 (8 factors)
First 10 multiples: 24, 48, 72, 96, 120, 144, 168, 192, 216, 240
Square: 24 × 24 = 576
Square root: ≈ 4.90
Sum of the digits: 2 + 4 = 6
Rounded to the nearest 10: 20
Number before: 23
Number after: 25
In binary: 11000

Quick check

What number comes just after 24?
Show the answer
25
Is 24 even or odd?
Show the answer
Even
What is 24 + 10?
Show the answer
34

Practise with a game

Count with Me

Count pictures up to 5, 10 or 20 and compare groups.

Place Value Quest

Ones, tens, hundreds and thousands.

Times Tables Challenge

Practise any times table from 2× to 12×.

Frequently asked questions

How do you write 24 in words?

24 is written "twenty-four".

Is 24 a prime number?

No. 24 is a composite number, because it has more than two factors.

What are the factors of 24?

The factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24.

How do you write 24 in Roman numerals?

24 in Roman numerals is XXIV.