Q: What are the prime factors of the number 245,550,042?

 A: 2, 3, 67, 7541

Why are those the prime factors of the number 245,550,042?

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 245,550,042

245,550,042
Factor Arrows
2122,775,021
Factor Arrows
340,925,007
Factor Arrows
313,641,669
Factor Arrows
34,547,223
Factor Arrows
31,515,741
Factor Arrows
3505,247
Factor Arrows
677,541

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, 67, 7541

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 67 x 7,541 = 245,550,042

This can also be written as 21 x 35 x 671 x 7,5411 = 245,550,042

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


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