Q: What are the prime factors of the number 427,313,152?

 A: 2, 7, 41, 727

Why are those the prime factors of the number 427,313,152?

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 427,313,152

427,313,152
Factor Arrows
2213,656,576
Factor Arrows
2106,828,288
Factor Arrows
253,414,144
Factor Arrows
226,707,072
Factor Arrows
213,353,536
Factor Arrows
26,676,768
Factor Arrows
23,338,384
Factor Arrows
21,669,192
Factor Arrows
2834,596
Factor Arrows
2417,298
Factor Arrows
2208,649
Factor Arrows
729,807
Factor Arrows
41727

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, 41, 727

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 2 x 2 x 7 x 41 x 727 = 427,313,152

This can also be written as 211 x 71 x 411 x 7271 = 427,313,152

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


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