Q: What are the prime factors of the number 153,424?

 A: 2, 43, 223

Why are those the prime factors of the number 153,424?

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 153,424

153,424
Factor Arrows
276,712
Factor Arrows
238,356
Factor Arrows
219,178
Factor Arrows
29,589
Factor Arrows
43223

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, 43, 223

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 43 x 223 = 153,424

This can also be written as 24 x 431 x 2231 = 153,424

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


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