Q: What are the prime factors of the number 258,341,252?

 A: 2, 13, 19, 37, 191

Why are those the prime factors of the number 258,341,252?

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 258,341,252

258,341,252
Factor Arrows
2129,170,626
Factor Arrows
264,585,313
Factor Arrows
134,968,101
Factor Arrows
19261,479
Factor Arrows
377,067
Factor Arrows
37191

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, 13, 19, 37, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 13 x 19 x 37 x 37 x 191 = 258,341,252

This can also be written as 22 x 131 x 191 x 372 x 1911 = 258,341,252

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


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