Q: What are the prime factors of the number 147,744,009?

 A: 3, 7, 29, 193, 419

Why are those the prime factors of the number 147,744,009?

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 147,744,009

147,744,009
Factor Arrows
349,248,003
Factor Arrows
316,416,001
Factor Arrows
72,345,143
Factor Arrows
2980,867
Factor Arrows
193419

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, 7, 29, 193, 419

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 29 x 193 x 419 = 147,744,009

This can also be written as 32 x 71 x 291 x 1931 x 4191 = 147,744,009

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


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