Q: What are the prime factors of the number 10,211,040?

 A: 2, 3, 5, 7, 1013

Why are those the prime factors of the number 10,211,040?

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 10,211,040

10,211,040
Factor Arrows
25,105,520
Factor Arrows
22,552,760
Factor Arrows
21,276,380
Factor Arrows
2638,190
Factor Arrows
2319,095
Factor Arrows
3106,365
Factor Arrows
335,455
Factor Arrows
57,091
Factor Arrows
71,013

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, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 x 1,013 = 10,211,040

This can also be written as 25 x 32 x 51 x 71 x 1,0131 = 10,211,040

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


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