Q: What are the prime factors of the number 209,619,504?

 A: 2, 3, 37, 39343

Why are those the prime factors of the number 209,619,504?

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 209,619,504

209,619,504
Factor Arrows
2104,809,752
Factor Arrows
252,404,876
Factor Arrows
226,202,438
Factor Arrows
213,101,219
Factor Arrows
34,367,073
Factor Arrows
31,455,691
Factor Arrows
3739,343

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, 37, 39343

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 37 x 39,343 = 209,619,504

This can also be written as 24 x 32 x 371 x 39,3431 = 209,619,504

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


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