Q: What are the prime factors of the number 43,525,120?

 A: 2, 5, 8501

Why are those the prime factors of the number 43,525,120?

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 43,525,120

43,525,120
Factor Arrows
221,762,560
Factor Arrows
210,881,280
Factor Arrows
25,440,640
Factor Arrows
22,720,320
Factor Arrows
21,360,160
Factor Arrows
2680,080
Factor Arrows
2340,040
Factor Arrows
2170,020
Factor Arrows
285,010
Factor Arrows
242,505
Factor Arrows
58,501

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, 8501

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 8,501 = 43,525,120

This can also be written as 210 x 51 x 8,5011 = 43,525,120

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


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