Discover a lot of information on the number 3: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!
Numerology and symbolism of the number 3
The number 3 (three) is the symbol of the trinity. He also represents the union.
The famous 3
- the 3 Musketeers - the 3 little pigs
Mathematical properties of 3
Questions and answers |
Is 3 a prime number? |
Yes |
Is 3 a perfect number? |
No |
Number of divisors |
2 |
List of dividers |
1, 3 |
Sum of divisors |
4 |
Prime factorization |
3 |
Prime factors |
3 |
How to write / spell 3 in letters?
In letters, the number 3 is written as: Three. And in other languages? how does it spell?
3 in other languages |
Write 3 in english |
Three |
Write 3 in french |
Trois |
Write 3 in spanish |
Tres |
Write 3 in portuguese |
Três |
Mathematical representations and links
Other ways to write 3 |
In letter |
Three |
In roman numeral |
III |
In binary |
11 |
In octal |
3 |
In hexadecimal |
3 |
In US dollars |
USD 3.00 ($) |
In euros |
3,00 EUR (€) |
Some related numbers |
Previous number |
2 |
Next number |
4 |
Next prime number |
5 |
Mathematical operations
Operations and solutions |
3*2 |
= |
6 |
The double of 3 is 6 |
3*3 |
= |
9 |
The triple of 3 is 9 |
3/2 |
= |
1.5 |
The half of 3 is 1.500000 |
3/3 |
= |
1 |
The third of 3 is 1.000000 |
32 |
= |
9 |
The square of 3 is 9.000000 |
33 |
= |
27 |
The cube of 3 is 27.000000 |
√3 |
= |
1.7320508075689 |
The square root of 3 is 1.732051 |
log(3) |
= |
1.0986122886681 |
The natural (Neperian) logarithm of 3 is 1.098612 |
log10(3) |
= |
0.47712125471966 |
The decimal logarithm (base 10) of 3 is 0.477121 |
sin(3) |
= |
0.14112000805987 |
The sine of 3 is 0.141120 |
cos(3) |
= |
-0.98999249660045 |
The cosine of 3 is -0.989992 |
tan(3) |
= |
-0.14254654307428 |
The tangent of 3 is -0.142547 |