Q: What are the prime factors of the number 800,336,424?

 A: 2, 3, 31, 71, 109, 139

Why are those the prime factors of the number 800,336,424?

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 800,336,424

800,336,424
Factor Arrows
2400,168,212
Factor Arrows
2200,084,106
Factor Arrows
2100,042,053
Factor Arrows
333,347,351
Factor Arrows
311,075,721
Factor Arrows
7115,151
Factor Arrows
109139

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, 31, 71, 109, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 71 x 109 x 139 = 800,336,424

This can also be written as 23 x 31 x 311 x 711 x 1091 x 1391 = 800,336,424

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


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