Q: What are the prime factors of the number 351,020,826?

 A: 2, 3, 13, 163, 9203

Why are those the prime factors of the number 351,020,826?

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 351,020,826

351,020,826
Factor Arrows
2175,510,413
Factor Arrows
358,503,471
Factor Arrows
319,501,157
Factor Arrows
131,500,089
Factor Arrows
1639,203

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, 163, 9203

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 13 x 163 x 9,203 = 351,020,826

This can also be written as 21 x 32 x 131 x 1631 x 9,2031 = 351,020,826

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


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