Q: What are the prime factors of the number 250,015,220?

 A: 2, 5, 7, 13, 10567

Why are those the prime factors of the number 250,015,220?

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 250,015,220

250,015,220
Factor Arrows
2125,007,610
Factor Arrows
262,503,805
Factor Arrows
512,500,761
Factor Arrows
71,785,823
Factor Arrows
13137,371
Factor Arrows
1310,567

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, 13, 10567

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 13 x 13 x 10,567 = 250,015,220

This can also be written as 22 x 51 x 71 x 132 x 10,5671 = 250,015,220

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


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