Q: What are the prime factors of the number 1,565,184?

 A: 2, 3, 1019

Why are those the prime factors of the number 1,565,184?

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 1,565,184

1,565,184
Factor Arrows
2782,592
Factor Arrows
2391,296
Factor Arrows
2195,648
Factor Arrows
297,824
Factor Arrows
248,912
Factor Arrows
224,456
Factor Arrows
212,228
Factor Arrows
26,114
Factor Arrows
23,057
Factor Arrows
31,019

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, 1019

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 1,019 = 1,565,184

This can also be written as 29 x 31 x 1,0191 = 1,565,184

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


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