Q: What are the prime factors of the number 442,120,224?

 A: 2, 3, 7, 13, 17, 229

Why are those the prime factors of the number 442,120,224?

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 442,120,224

442,120,224
Factor Arrows
2221,060,112
Factor Arrows
2110,530,056
Factor Arrows
255,265,028
Factor Arrows
227,632,514
Factor Arrows
213,816,257
Factor Arrows
34,605,419
Factor Arrows
7657,917
Factor Arrows
1350,609
Factor Arrows
133,893
Factor Arrows
17229

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, 7, 13, 17, 229

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 7 x 13 x 13 x 17 x 229 = 442,120,224

This can also be written as 25 x 31 x 71 x 132 x 171 x 2291 = 442,120,224

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


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