Q: What are the prime factors of the number 405,730,010?

 A: 2, 5, 7, 29, 269, 743

Why are those the prime factors of the number 405,730,010?

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 405,730,010

405,730,010
Factor Arrows
2202,865,005
Factor Arrows
540,573,001
Factor Arrows
75,796,143
Factor Arrows
29199,867
Factor Arrows
269743

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, 7, 29, 269, 743

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 29 x 269 x 743 = 405,730,010

This can also be written as 21 x 51 x 71 x 291 x 2691 x 7431 = 405,730,010

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


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