Q: What are the prime factors of the number 4,143,360?

 A: 2, 3, 5, 13, 83

Why are those the prime factors of the number 4,143,360?

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 4,143,360

4,143,360
Factor Arrows
22,071,680
Factor Arrows
21,035,840
Factor Arrows
2517,920
Factor Arrows
2258,960
Factor Arrows
2129,480
Factor Arrows
264,740
Factor Arrows
232,370
Factor Arrows
216,185
Factor Arrows
35,395
Factor Arrows
51,079
Factor Arrows
1383

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, 13, 83

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 2 x 2 x 3 x 5 x 13 x 83 = 4,143,360

This can also be written as 28 x 31 x 51 x 131 x 831 = 4,143,360

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


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