Q: What are the prime factors of the number 390,112?

 A: 2, 73, 167

Why are those the prime factors of the number 390,112?

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 390,112

390,112
Factor Arrows
2195,056
Factor Arrows
297,528
Factor Arrows
248,764
Factor Arrows
224,382
Factor Arrows
212,191
Factor Arrows
73167

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, 73, 167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 73 x 167 = 390,112

This can also be written as 25 x 731 x 1671 = 390,112

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


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