Q: What are the prime factors of the number 3,546,368?

 A: 2, 7, 1979

Why are those the prime factors of the number 3,546,368?

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 3,546,368

3,546,368
Factor Arrows
21,773,184
Factor Arrows
2886,592
Factor Arrows
2443,296
Factor Arrows
2221,648
Factor Arrows
2110,824
Factor Arrows
255,412
Factor Arrows
227,706
Factor Arrows
213,853
Factor Arrows
71,979

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, 1979

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 7 x 1,979 = 3,546,368

This can also be written as 28 x 71 x 1,9791 = 3,546,368

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


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