Q: What are the prime factors of the number 312,023,030?

 A: 2, 5, 11, 139, 20407

Why are those the prime factors of the number 312,023,030?

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 312,023,030

312,023,030
Factor Arrows
2156,011,515
Factor Arrows
531,202,303
Factor Arrows
112,836,573
Factor Arrows
13920,407

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, 11, 139, 20407

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 139 x 20,407 = 312,023,030

This can also be written as 21 x 51 x 111 x 1391 x 20,4071 = 312,023,030

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


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