Q: What are the prime factors of the number 586,531,840?

 A: 2, 5, 97, 1181

Why are those the prime factors of the number 586,531,840?

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 586,531,840

586,531,840
Factor Arrows
2293,265,920
Factor Arrows
2146,632,960
Factor Arrows
273,316,480
Factor Arrows
236,658,240
Factor Arrows
218,329,120
Factor Arrows
29,164,560
Factor Arrows
24,582,280
Factor Arrows
22,291,140
Factor Arrows
21,145,570
Factor Arrows
2572,785
Factor Arrows
5114,557
Factor Arrows
971,181

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, 97, 1181

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 5 x 97 x 1,181 = 586,531,840

This can also be written as 210 x 51 x 971 x 1,1811 = 586,531,840

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


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