Q: What are the prime factors of the number 342,210,240?

 A: 2, 3, 5, 31, 3833

Why are those the prime factors of the number 342,210,240?

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 342,210,240

342,210,240
Factor Arrows
2171,105,120
Factor Arrows
285,552,560
Factor Arrows
242,776,280
Factor Arrows
221,388,140
Factor Arrows
210,694,070
Factor Arrows
25,347,035
Factor Arrows
31,782,345
Factor Arrows
3594,115
Factor Arrows
5118,823
Factor Arrows
313,833

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, 31, 3833

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 3 x 3 x 5 x 31 x 3,833 = 342,210,240

This can also be written as 26 x 32 x 51 x 311 x 3,8331 = 342,210,240

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


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