Q: What are the prime factors of the number 240,200,000?

 A: 2, 5, 1201

Why are those the prime factors of the number 240,200,000?

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 240,200,000

240,200,000
Factor Arrows
2120,100,000
Factor Arrows
260,050,000
Factor Arrows
230,025,000
Factor Arrows
215,012,500
Factor Arrows
27,506,250
Factor Arrows
23,753,125
Factor Arrows
5750,625
Factor Arrows
5150,125
Factor Arrows
530,025
Factor Arrows
56,005
Factor Arrows
51,201

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, 1201

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 5 x 5 x 5 x 5 x 5 x 1,201 = 240,200,000

This can also be written as 26 x 55 x 1,2011 = 240,200,000

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


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