Q: What are the prime factors of the number 535,120,380?

 A: 2, 3, 5, 43, 47, 1471

Why are those the prime factors of the number 535,120,380?

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 535,120,380

535,120,380
Factor Arrows
2267,560,190
Factor Arrows
2133,780,095
Factor Arrows
344,593,365
Factor Arrows
314,864,455
Factor Arrows
52,972,891
Factor Arrows
4369,137
Factor Arrows
471,471

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, 43, 47, 1471

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 43 x 47 x 1,471 = 535,120,380

This can also be written as 22 x 32 x 51 x 431 x 471 x 1,4711 = 535,120,380

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


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