Q: What are the prime factors of the number 555,562,458?

 A: 2, 3, 11, 197, 14243

Why are those the prime factors of the number 555,562,458?

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 555,562,458

555,562,458
Factor Arrows
2277,781,229
Factor Arrows
392,593,743
Factor Arrows
330,864,581
Factor Arrows
112,805,871
Factor Arrows
19714,243

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, 3, 11, 197, 14243

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 197 x 14,243 = 555,562,458

This can also be written as 21 x 32 x 111 x 1971 x 14,2431 = 555,562,458

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


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