Q: What are the prime factors of the number 541,185,120?

 A: 2, 3, 5, 7, 53, 1013

Why are those the prime factors of the number 541,185,120?

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 541,185,120

541,185,120
Factor Arrows
2270,592,560
Factor Arrows
2135,296,280
Factor Arrows
267,648,140
Factor Arrows
233,824,070
Factor Arrows
216,912,035
Factor Arrows
35,637,345
Factor Arrows
31,879,115
Factor Arrows
5375,823
Factor Arrows
753,689
Factor Arrows
531,013

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, 53, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 x 53 x 1,013 = 541,185,120

This can also be written as 25 x 32 x 51 x 71 x 531 x 1,0131 = 541,185,120

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


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