Q: What are the prime factors of the number 413,422,254?

 A: 2, 3, 7, 19, 61, 149

Why are those the prime factors of the number 413,422,254?

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 413,422,254

413,422,254
Factor Arrows
2206,711,127
Factor Arrows
368,903,709
Factor Arrows
322,967,903
Factor Arrows
73,281,129
Factor Arrows
19172,691
Factor Arrows
199,089
Factor Arrows
61149

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, 7, 19, 61, 149

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 19 x 19 x 61 x 149 = 413,422,254

This can also be written as 21 x 32 x 71 x 192 x 611 x 1491 = 413,422,254

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


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