Q: What are the prime factors of the number 553,444,605?

 A: 3, 5, 7, 17, 181, 571

Why are those the prime factors of the number 553,444,605?

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 553,444,605

553,444,605
Factor Arrows
3184,481,535
Factor Arrows
361,493,845
Factor Arrows
512,298,769
Factor Arrows
71,756,967
Factor Arrows
17103,351
Factor Arrows
181571

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, 7, 17, 181, 571

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 17 x 181 x 571 = 553,444,605

This can also be written as 32 x 51 x 71 x 171 x 1811 x 5711 = 553,444,605

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


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