Q: What are the prime factors of the number 35,855,190?

 A: 2, 3, 5, 7, 61, 311

Why are those the prime factors of the number 35,855,190?

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 35,855,190

35,855,190
Factor Arrows
217,927,595
Factor Arrows
35,975,865
Factor Arrows
31,991,955
Factor Arrows
3663,985
Factor Arrows
5132,797
Factor Arrows
718,971
Factor Arrows
61311

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, 5, 7, 61, 311

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 61 x 311 = 35,855,190

This can also be written as 21 x 33 x 51 x 71 x 611 x 3111 = 35,855,190

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


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