Q: What are the prime factors of the number 530,710,272?

 A: 2, 3, 76781

Why are those the prime factors of the number 530,710,272?

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 530,710,272

530,710,272
Factor Arrows
2265,355,136
Factor Arrows
2132,677,568
Factor Arrows
266,338,784
Factor Arrows
233,169,392
Factor Arrows
216,584,696
Factor Arrows
28,292,348
Factor Arrows
24,146,174
Factor Arrows
22,073,087
Factor Arrows
3691,029
Factor Arrows
3230,343
Factor Arrows
376,781

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, 76781

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 2 x 2 x 3 x 3 x 3 x 76,781 = 530,710,272

This can also be written as 28 x 33 x 76,7811 = 530,710,272

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


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