Q: What are the prime factors of the number 63,042,320?

 A: 2, 5, 11, 71, 1009

Why are those the prime factors of the number 63,042,320?

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 63,042,320

63,042,320
Factor Arrows
231,521,160
Factor Arrows
215,760,580
Factor Arrows
27,880,290
Factor Arrows
23,940,145
Factor Arrows
5788,029
Factor Arrows
1171,639
Factor Arrows
711,009

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, 11, 71, 1009

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 71 x 1,009 = 63,042,320

This can also be written as 24 x 51 x 111 x 711 x 1,0091 = 63,042,320

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


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