Q: What are the prime factors of the number 312,003,230?

 A: 2, 5, 7, 11, 405199

Why are those the prime factors of the number 312,003,230?

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 312,003,230

312,003,230
Factor Arrows
2156,001,615
Factor Arrows
531,200,323
Factor Arrows
74,457,189
Factor Arrows
11405,199

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, 11, 405199

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 11 x 405,199 = 312,003,230

This can also be written as 21 x 51 x 71 x 111 x 405,1991 = 312,003,230

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


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