Q: What are the prime factors of the number 1,841,152?

 A: 2, 29, 31

Why are those the prime factors of the number 1,841,152?

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 1,841,152

1,841,152
Factor Arrows
2920,576
Factor Arrows
2460,288
Factor Arrows
2230,144
Factor Arrows
2115,072
Factor Arrows
257,536
Factor Arrows
228,768
Factor Arrows
214,384
Factor Arrows
27,192
Factor Arrows
23,596
Factor Arrows
21,798
Factor Arrows
2899
Factor Arrows
2931

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, 29, 31

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 2 x 2 x 29 x 31 = 1,841,152

This can also be written as 211 x 291 x 311 = 1,841,152

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


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