Q: What are the prime factors of the number 170,288,900?

 A: 2, 5, 139, 12251

Why are those the prime factors of the number 170,288,900?

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 170,288,900

170,288,900
Factor Arrows
285,144,450
Factor Arrows
242,572,225
Factor Arrows
58,514,445
Factor Arrows
51,702,889
Factor Arrows
13912,251

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, 5, 139, 12251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 139 x 12,251 = 170,288,900

This can also be written as 22 x 52 x 1391 x 12,2511 = 170,288,900

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


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