Q: What are the prime factors of the number 2,812,544?

 A: 2, 7, 43, 73

Why are those the prime factors of the number 2,812,544?

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 2,812,544

2,812,544
Factor Arrows
21,406,272
Factor Arrows
2703,136
Factor Arrows
2351,568
Factor Arrows
2175,784
Factor Arrows
287,892
Factor Arrows
243,946
Factor Arrows
221,973
Factor Arrows
73,139
Factor Arrows
4373

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, 7, 43, 73

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 7 x 43 x 73 = 2,812,544

This can also be written as 27 x 71 x 431 x 731 = 2,812,544

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


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