Q: What are the prime factors of the number 365,130,258?

 A: 2, 3, 19, 79, 40543

Why are those the prime factors of the number 365,130,258?

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 365,130,258

365,130,258
Factor Arrows
2182,565,129
Factor Arrows
360,855,043
Factor Arrows
193,202,897
Factor Arrows
7940,543

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, 19, 79, 40543

We can check our work by multiplying all of the prime factors together: 2 x 3 x 19 x 79 x 40,543 = 365,130,258

This can also be written as 21 x 31 x 191 x 791 x 40,5431 = 365,130,258

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


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