Q: What are the prime factors of the number 10,140,432?

 A: 2, 3, 17, 43

Why are those the prime factors of the number 10,140,432?

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 10,140,432

10,140,432
Factor Arrows
25,070,216
Factor Arrows
22,535,108
Factor Arrows
21,267,554
Factor Arrows
2633,777
Factor Arrows
3211,259
Factor Arrows
1712,427
Factor Arrows
17731
Factor Arrows
1743

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, 17, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 17 x 17 x 43 = 10,140,432

This can also be written as 24 x 31 x 173 x 431 = 10,140,432

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


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