Q: What are the prime factors of the number 148,523,544?

 A: 2, 3, 13, 653

Why are those the prime factors of the number 148,523,544?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 148,523,544

148,523,544
Factor Arrows
274,261,772
Factor Arrows
237,130,886
Factor Arrows
218,565,443
Factor Arrows
36,188,481
Factor Arrows
32,062,827
Factor Arrows
3687,609
Factor Arrows
3229,203
Factor Arrows
376,401
Factor Arrows
325,467
Factor Arrows
38,489
Factor Arrows
13653

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 13, 653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 13 x 653 = 148,523,544

This can also be written as 23 x 37 x 131 x 6531 = 148,523,544

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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