Q: What are the prime factors of the number 404,652,348?

 A: 2, 3, 19, 21911

Why are those the prime factors of the number 404,652,348?

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 404,652,348

404,652,348
Factor Arrows
2202,326,174
Factor Arrows
2101,163,087
Factor Arrows
333,721,029
Factor Arrows
311,240,343
Factor Arrows
33,746,781
Factor Arrows
31,248,927
Factor Arrows
3416,309
Factor Arrows
1921,911

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, 19, 21911

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 19 x 21,911 = 404,652,348

This can also be written as 22 x 35 x 191 x 21,9111 = 404,652,348

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


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