Q: What are the prime factors of the number 330,223,040?

 A: 2, 5, 7, 19, 7759

Why are those the prime factors of the number 330,223,040?

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 330,223,040

330,223,040
Factor Arrows
2165,111,520
Factor Arrows
282,555,760
Factor Arrows
241,277,880
Factor Arrows
220,638,940
Factor Arrows
210,319,470
Factor Arrows
25,159,735
Factor Arrows
51,031,947
Factor Arrows
7147,421
Factor Arrows
197,759

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, 19, 7759

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 5 x 7 x 19 x 7,759 = 330,223,040

This can also be written as 26 x 51 x 71 x 191 x 7,7591 = 330,223,040

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


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