Q: What are the prime factors of the number 342,112,240?

 A: 2, 5, 811, 5273

Why are those the prime factors of the number 342,112,240?

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 342,112,240

342,112,240
Factor Arrows
2171,056,120
Factor Arrows
285,528,060
Factor Arrows
242,764,030
Factor Arrows
221,382,015
Factor Arrows
54,276,403
Factor Arrows
8115,273

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, 811, 5273

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 811 x 5,273 = 342,112,240

This can also be written as 24 x 51 x 8111 x 5,2731 = 342,112,240

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


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