Q: What are the prime factors of the number 2,228,736?

 A: 2, 3, 1451

Why are those the prime factors of the number 2,228,736?

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 2,228,736

2,228,736
Factor Arrows
21,114,368
Factor Arrows
2557,184
Factor Arrows
2278,592
Factor Arrows
2139,296
Factor Arrows
269,648
Factor Arrows
234,824
Factor Arrows
217,412
Factor Arrows
28,706
Factor Arrows
24,353
Factor Arrows
31,451

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, 1451

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 2 x 3 x 1,451 = 2,228,736

This can also be written as 29 x 31 x 1,4511 = 2,228,736

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


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