Enter a number
in the field above
in the field above
To calculate the prime factors of 15 enter a number in the field below and press decompose:
The factorization of 15 is equal to 3 × 5. We find these factors by successively dividing 15 by the prime numbers until we obtain the prime factors.
The prime factor tree of 15 is an illustration that shows how the number 15 is decomposed into its fundamental prime factors, as 2, 3 and 5. This visual representation helps you understand the underlying structure of the number and how it is formed from smaller prime numbers.
Look at the following tree:
| 15 | |||||||||
| 3 | 5 | ||||||||
Start by dividing the number 15 by the smallest prime numbers, starting with the smallest prime, which is 3.
15 ÷ 3 = 5
Now, the numbers by which you divided 15 and got integer results are the prime factors of 15. In this case, we have 3 and 5.
Write the factorization of the number 15 using its prime factors. The full factorization of 15 is:
15 = 3 × 5
These steps show how the number 15 can be factored into its prime components, which is helpful in understanding its structure and mathematical properties.