Q: What are the prime factors of the number 355,152,460?

 A: 2, 5, 13, 641, 2131

Why are those the prime factors of the number 355,152,460?

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 355,152,460

355,152,460
Factor Arrows
2177,576,230
Factor Arrows
288,788,115
Factor Arrows
517,757,623
Factor Arrows
131,365,971
Factor Arrows
6412,131

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, 13, 641, 2131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 641 x 2,131 = 355,152,460

This can also be written as 22 x 51 x 131 x 6411 x 2,1311 = 355,152,460

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


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