Q: What are the prime factors of the number 553,641,440?

 A: 2, 5, 11, 314569

Why are those the prime factors of the number 553,641,440?

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 553,641,440

553,641,440
Factor Arrows
2276,820,720
Factor Arrows
2138,410,360
Factor Arrows
269,205,180
Factor Arrows
234,602,590
Factor Arrows
217,301,295
Factor Arrows
53,460,259
Factor Arrows
11314,569

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, 5, 11, 314569

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 314,569 = 553,641,440

This can also be written as 25 x 51 x 111 x 314,5691 = 553,641,440

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


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