Q: What are the prime factors of the number 561,354,374?

 A: 2, 7, 547, 73303

Why are those the prime factors of the number 561,354,374?

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 561,354,374

561,354,374
Factor Arrows
2280,677,187
Factor Arrows
740,096,741
Factor Arrows
54773,303

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, 7, 547, 73303

We can check our work by multiplying all of the prime factors together: 2 x 7 x 547 x 73,303 = 561,354,374

This can also be written as 21 x 71 x 5471 x 73,3031 = 561,354,374

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


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