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Question

Find the prime factorization of number 144.

Answer

The prime factorization of 144 is:

Which is the same as :

Explanation

Prime factorization can be nicely visualized by creating a factorization tree.

144 can be written as 2 × 72.
  • 144
    • 2
    • 72
72 can be written as 2 × 36.
  • 144
    • 2
    • 72
      • 36
      • 2
36 can be written as 2 × 18.
  • 144
    • 2
    • 72
      • 36
        • 2
        • 18
      • 2
18 can be written as 2 × 9.
  • 144
    • 2
    • 72
      • 36
        • 2
        • 18
          • 9
          • 2
      • 2
9 can be written as 3 × 3.
  • 144
    • 2
    • 72
      • 36
        • 2
        • 18
          • 9
            • 3
            • 3
          • 2
      • 2
The end nodes are the prime factors of the number 144.
  • 144
    • 2
    • 72
      • 36
        • 2
        • 18
          • 9
            • 3
            • 3
          • 2
      • 2
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Prime factorization calculator