Q: What are the prime factors of the number 403,550,360?

 A: 2, 5, 139, 181, 401

Why are those the prime factors of the number 403,550,360?

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 403,550,360

403,550,360
Factor Arrows
2201,775,180
Factor Arrows
2100,887,590
Factor Arrows
250,443,795
Factor Arrows
510,088,759
Factor Arrows
13972,581
Factor Arrows
181401

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, 181, 401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 139 x 181 x 401 = 403,550,360

This can also be written as 23 x 51 x 1391 x 1811 x 4011 = 403,550,360

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


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