Q: What are the prime factors of the number 1,109,430?

 A: 2, 3, 5, 7, 587

Why are those the prime factors of the number 1,109,430?

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 1,109,430

1,109,430
Factor Arrows
2554,715
Factor Arrows
3184,905
Factor Arrows
361,635
Factor Arrows
320,545
Factor Arrows
54,109
Factor Arrows
7587

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, 5, 7, 587

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 587 = 1,109,430

This can also be written as 21 x 33 x 51 x 71 x 5871 = 1,109,430

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


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