The place value for any number will start from ones. We place 3 in ones place.
|
Tens |
Ones |
|
1 |
3 |
In ones place we write 3 and in tens place we write 1
Therefore, 13 in words is ‘thirteen’
We learned to express 13 in words. Now we can discuss the properties of number 13
|
Mathematical Property |
Answers |
|
Is 13 a composite number? |
No |
|
Is 13 a prime number? |
Yes |
|
Is 13 a perfect cube? |
No |
|
Is 13 a perfect square? |
No |
|
Cube root of 13 |
2.35 |
|
Square root of 13 |
3.60 |
|
Is 13 an even number? |
No |
|
Is 13 an odd number? |
Yes |
|
Factors of 13 |
1,13 |
|
Prime factors of 13 |
13 |
|
Multiples of 13 |
13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, 169, 182, 195, 208, 221, 234 |


Mistakes are common for children while writing any numbers in words. The basic mistakes they make are in incorrect spelling or in putting digits in wrong places. Here, a list of noted mistakes is given for easy reference so that the children can easily avoid it.
Mispronouncing 13
A kid may mispronounce, 13 as “tharteen”. Make use of the audio clip that gives correct pronunciation and practice.
Getting confused with the number 13 and 30
Children can write incorrect numbers. To write the correct number, make sure that you check the numbers by writing them in words. 13 is written as thirteen and 30 is written as thirty.
Using XIII to denote 13
While writing the number in words, always make sure that you have spelled out everything. Don’t write “XIII” for 13 to create confusion.
Yes, 13 is a prime number with 1 and 13 as its factors.
13 in roman numeral is XIII
In formal documents, 13 is written as ‘thirteen’.
The correct spelling of 13 is ‘Thirteen’
No, 13 is not divisible by 3 because 3 is not a factor of 13.

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.
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