Q: What are the prime factors of the number 340,013,232?

 A: 2, 3, 13, 23, 53, 149

Why are those the prime factors of the number 340,013,232?

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 340,013,232

340,013,232
Factor Arrows
2170,006,616
Factor Arrows
285,003,308
Factor Arrows
242,501,654
Factor Arrows
221,250,827
Factor Arrows
37,083,609
Factor Arrows
32,361,203
Factor Arrows
13181,631
Factor Arrows
237,897
Factor Arrows
53149

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, 13, 23, 53, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 13 x 23 x 53 x 149 = 340,013,232

This can also be written as 24 x 32 x 131 x 231 x 531 x 1491 = 340,013,232

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


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