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29 in words

29

twenty-nine

29 is written twenty-nine.

Ways to write it

As an ordinal: twenty-ninth
Roman numeral: XXIX
Expanded form: 20 + 9

Place value

Place	Digit	Value
tens	2	20
ones	9	9

Number facts

Even or odd: Odd
Prime or composite: Prime
Factors: 1 and 29 (2 factors)
First 10 multiples: 29, 58, 87, 116, 145, 174, 203, 232, 261, 290
Square: 29 × 29 = 841
Square root: ≈ 5.39
Sum of the digits: 2 + 9 = 11
Rounded to the nearest 10: 30
Number before: 28
Number after: 30
In binary: 11101

Quick check

What number comes just after 29?
Show the answer
30
Is 29 even or odd?
Show the answer
Odd
What is 29 + 10?
Show the answer
39

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 29 in words?

29 is written "twenty-nine".

Is 29 a prime number?

Yes. 29 is a prime number: its only factors are 1 and 29.

What are the factors of 29?

The factors of 29 are 1 and 29.

How do you write 29 in Roman numerals?

29 in Roman numerals is XXIX.