Q: What are the prime factors of the number 403,124,204?

 A: 2, 7, 131, 109903

Why are those the prime factors of the number 403,124,204?

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 403,124,204

403,124,204
Factor Arrows
2201,562,102
Factor Arrows
2100,781,051
Factor Arrows
714,397,293
Factor Arrows
131109,903

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, 131, 109903

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 131 x 109,903 = 403,124,204

This can also be written as 22 x 71 x 1311 x 109,9031 = 403,124,204

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


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