Q: What are the prime factors of the number 10,440,430?

 A: 2, 5, 7, 11, 13, 149

Why are those the prime factors of the number 10,440,430?

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 10,440,430

10,440,430
Factor Arrows
25,220,215
Factor Arrows
51,044,043
Factor Arrows
7149,149
Factor Arrows
721,307
Factor Arrows
111,937
Factor Arrows
13149

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, 11, 13, 149

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 7 x 11 x 13 x 149 = 10,440,430

This can also be written as 21 x 51 x 72 x 111 x 131 x 1491 = 10,440,430

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


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