Q: What are the prime factors of the number 86,433,408?

 A: 2, 3, 75029

Why are those the prime factors of the number 86,433,408?

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 86,433,408

86,433,408
Factor Arrows
243,216,704
Factor Arrows
221,608,352
Factor Arrows
210,804,176
Factor Arrows
25,402,088
Factor Arrows
22,701,044
Factor Arrows
21,350,522
Factor Arrows
2675,261
Factor Arrows
3225,087
Factor Arrows
375,029

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, 75029

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 75,029 = 86,433,408

This can also be written as 27 x 32 x 75,0291 = 86,433,408

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


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