Q: What are the prime factors of the number 4,048,032?

 A: 2, 3, 149, 283

Why are those the prime factors of the number 4,048,032?

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 4,048,032

4,048,032
Factor Arrows
22,024,016
Factor Arrows
21,012,008
Factor Arrows
2506,004
Factor Arrows
2253,002
Factor Arrows
2126,501
Factor Arrows
342,167
Factor Arrows
149283

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, 149, 283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 149 x 283 = 4,048,032

This can also be written as 25 x 31 x 1491 x 2831 = 4,048,032

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


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