Q: What are the prime factors of the number 554,115,625?

 A: 5, 7, 73, 347

Why are those the prime factors of the number 554,115,625?

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 554,115,625

554,115,625
Factor Arrows
5110,823,125
Factor Arrows
522,164,625
Factor Arrows
54,432,925
Factor Arrows
5886,585
Factor Arrows
5177,317
Factor Arrows
725,331
Factor Arrows
73347

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:

5, 7, 73, 347

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 5 x 7 x 73 x 347 = 554,115,625

This can also be written as 55 x 71 x 731 x 3471 = 554,115,625

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


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