Q: What are the prime factors of the number 556,560,240?

 A: 2, 3, 5, 41, 163, 347

Why are those the prime factors of the number 556,560,240?

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 556,560,240

556,560,240
Factor Arrows
2278,280,120
Factor Arrows
2139,140,060
Factor Arrows
269,570,030
Factor Arrows
234,785,015
Factor Arrows
311,595,005
Factor Arrows
52,319,001
Factor Arrows
4156,561
Factor Arrows
163347

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, 5, 41, 163, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 41 x 163 x 347 = 556,560,240

This can also be written as 24 x 31 x 51 x 411 x 1631 x 3471 = 556,560,240

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


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