Q: What are the prime factors of the number 553,581?

 A: 3, 7, 29, 101

Why are those the prime factors of the number 553,581?

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 553,581

553,581
Factor Arrows
3184,527
Factor Arrows
361,509
Factor Arrows
320,503
Factor Arrows
72,929
Factor Arrows
29101

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, 101

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 29 x 101 = 553,581

This can also be written as 33 x 71 x 291 x 1011 = 553,581

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


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