Q: What are the prime factors of the number 530,880?

 A: 2, 3, 5, 7, 79

Why are those the prime factors of the number 530,880?

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 530,880

530,880
Factor Arrows
2265,440
Factor Arrows
2132,720
Factor Arrows
266,360
Factor Arrows
233,180
Factor Arrows
216,590
Factor Arrows
28,295
Factor Arrows
32,765
Factor Arrows
5553
Factor Arrows
779

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, 3, 5, 7, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 79 = 530,880

This can also be written as 26 x 31 x 51 x 71 x 791 = 530,880

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


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