Q: What are the prime factors of the number 554,086,400?

 A: 2, 5, 7, 773

Why are those the prime factors of the number 554,086,400?

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 554,086,400

554,086,400
Factor Arrows
2277,043,200
Factor Arrows
2138,521,600
Factor Arrows
269,260,800
Factor Arrows
234,630,400
Factor Arrows
217,315,200
Factor Arrows
28,657,600
Factor Arrows
24,328,800
Factor Arrows
22,164,400
Factor Arrows
21,082,200
Factor Arrows
2541,100
Factor Arrows
2270,550
Factor Arrows
2135,275
Factor Arrows
527,055
Factor Arrows
55,411
Factor Arrows
7773

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, 7, 773

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 7 x 773 = 554,086,400

This can also be written as 212 x 52 x 71 x 7731 = 554,086,400

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


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