Q: What are the prime factors of the number 38,929,030?

 A: 2, 5, 7, 53, 1499

Why are those the prime factors of the number 38,929,030?

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 38,929,030

38,929,030
Factor Arrows
219,464,515
Factor Arrows
53,892,903
Factor Arrows
7556,129
Factor Arrows
779,447
Factor Arrows
531,499

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, 53, 1499

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 7 x 53 x 1,499 = 38,929,030

This can also be written as 21 x 51 x 72 x 531 x 1,4991 = 38,929,030

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


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