Q: What are the prime factors of the number 530,240,144?

 A: 2, 7, 19, 67, 3719

Why are those the prime factors of the number 530,240,144?

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 530,240,144

530,240,144
Factor Arrows
2265,120,072
Factor Arrows
2132,560,036
Factor Arrows
266,280,018
Factor Arrows
233,140,009
Factor Arrows
74,734,287
Factor Arrows
19249,173
Factor Arrows
673,719

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, 7, 19, 67, 3719

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 19 x 67 x 3,719 = 530,240,144

This can also be written as 24 x 71 x 191 x 671 x 3,7191 = 530,240,144

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


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