Q: What are the prime factors of the number 38,955,904?

 A: 2, 13, 41, 571

Why are those the prime factors of the number 38,955,904?

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 38,955,904

38,955,904
Factor Arrows
219,477,952
Factor Arrows
29,738,976
Factor Arrows
24,869,488
Factor Arrows
22,434,744
Factor Arrows
21,217,372
Factor Arrows
2608,686
Factor Arrows
2304,343
Factor Arrows
1323,411
Factor Arrows
41571

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, 13, 41, 571

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 13 x 41 x 571 = 38,955,904

This can also be written as 27 x 131 x 411 x 5711 = 38,955,904

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


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