Prime factorization of 15

Here you will see step by step solution of prime factorization of 15, how to find factors of 15, you will see all factors of 15, how many factors of 15 has? Factors of 15 are 1, 3, 5, 15, we can see that 15 has 4 factor and sum of all factors is 24.

  • All Factors of 15: 1, 3, 5, 15
  • Prime Factors of 15: 3 × 5
  • Prime Factorization of 15: 31 × 51
  • Sum of Factors of 15: 24
  • Is 15 prime number: No

How to find factors of 15 by Division Method?

To find the factors of 15 by division method, we need the find the all numbers between 1 to 15, which divide 15 with 0 remainder, then the number is factor of 15.

Pair factors of 15

  • 15/1 = 15 [ 1 × 15 (1, 15) 1 and 15 is pair factor of 15]
  • 15/3 = 5 [ 3 × 5 (3, 5) 3 and 5 is pair factor of 15]
  • 15/5 = 3 [ 5 × 3 (5, 3) 5 and 3 is pair factor of 15]
  • 15/15 = 1 [ 15 × 1 (15, 1) 15 and 1 is pair factor of 15]

As we checked numbers between 1 to 15 that are not leaving any remainder, hence we can say factors of 15 is 1, 3, 5, 15.

Also note that, in exponential form prime factorization of 15 is written as 31 × 51 and it is a composite number.

Prime Factorization Calculator

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