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Country and language

Country and language: Nigeria

Country and language

27 in words

27

twenty-seven

27 is written twenty-seven.

Ways to write it

As an ordinal
twenty-seventh
Roman numeral
XXVII
Expanded form
20 + 7

Place value

PlaceDigitValue
tens220
ones77

Number facts

Even or odd
Odd
Prime or composite
Composite
Factors
1, 3, 9 and 27 (4 factors)
First 10 multiples
27, 54, 81, 108, 135, 162, 189, 216, 243, 270
Square
27 × 27 = 729
Square root
≈ 5.20
Cube root
3
Sum of the digits
2 + 7 = 9
Rounded to the nearest 10
30
Number before
26
Number after
28
In binary
11011

Quick check

  1. What number comes just after 27?

    Show the answer

    28

  2. Is 27 even or odd?

    Show the answer

    Odd

  3. What is 27 + 10?

    Show the answer

    37

Practise with a game

Count with Me

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

Frequently asked questions

How do you write 27 in words?

27 is written "twenty-seven".

Is 27 a prime number?

No. 27 is a composite number, because it has more than two factors.

What are the factors of 27?

The factors of 27 are 1, 3, 9 and 27.

How do you write 27 in Roman numerals?

27 in Roman numerals is XXVII.