Q: What are the prime factors of the number 52,003,840?

 A: 2, 5, 7, 1451

Why are those the prime factors of the number 52,003,840?

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 52,003,840

52,003,840
Factor Arrows
226,001,920
Factor Arrows
213,000,960
Factor Arrows
26,500,480
Factor Arrows
23,250,240
Factor Arrows
21,625,120
Factor Arrows
2812,560
Factor Arrows
2406,280
Factor Arrows
2203,140
Factor Arrows
2101,570
Factor Arrows
250,785
Factor Arrows
510,157
Factor Arrows
71,451

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, 5, 7, 1451

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 2 x 2 x 5 x 7 x 1,451 = 52,003,840

This can also be written as 210 x 51 x 71 x 1,4511 = 52,003,840

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


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