Q: What are the prime factors of the number 433,400,240?

 A: 2, 5, 7, 13, 37, 1609

Why are those the prime factors of the number 433,400,240?

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 433,400,240

433,400,240
Factor Arrows
2216,700,120
Factor Arrows
2108,350,060
Factor Arrows
254,175,030
Factor Arrows
227,087,515
Factor Arrows
55,417,503
Factor Arrows
7773,929
Factor Arrows
1359,533
Factor Arrows
371,609

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, 5, 7, 13, 37, 1609

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 13 x 37 x 1,609 = 433,400,240

This can also be written as 24 x 51 x 71 x 131 x 371 x 1,6091 = 433,400,240

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


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