Q: What are the prime factors of the number 273,224,655?

 A: 3, 5, 11, 19, 139

Why are those the prime factors of the number 273,224,655?

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 273,224,655

273,224,655
Factor Arrows
391,074,885
Factor Arrows
330,358,295
Factor Arrows
56,071,659
Factor Arrows
11551,969
Factor Arrows
1150,179
Factor Arrows
192,641
Factor Arrows
19139

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:

3, 5, 11, 19, 139

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 11 x 11 x 19 x 19 x 139 = 273,224,655

This can also be written as 32 x 51 x 112 x 192 x 1391 = 273,224,655

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


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