Q: What are the prime factors of the number 35,250,250?

 A: 2, 5, 7, 20143

Why are those the prime factors of the number 35,250,250?

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 35,250,250

35,250,250
Factor Arrows
217,625,125
Factor Arrows
53,525,025
Factor Arrows
5705,005
Factor Arrows
5141,001
Factor Arrows
720,143

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, 20143

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 7 x 20,143 = 35,250,250

This can also be written as 21 x 53 x 71 x 20,1431 = 35,250,250

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


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