Q: What are the prime factors of the number 867,812,080?

 A: 2, 5, 19, 23, 103, 241

Why are those the prime factors of the number 867,812,080?

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 867,812,080

867,812,080
Factor Arrows
2433,906,040
Factor Arrows
2216,953,020
Factor Arrows
2108,476,510
Factor Arrows
254,238,255
Factor Arrows
510,847,651
Factor Arrows
19570,929
Factor Arrows
2324,823
Factor Arrows
103241

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, 19, 23, 103, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 19 x 23 x 103 x 241 = 867,812,080

This can also be written as 24 x 51 x 191 x 231 x 1031 x 2411 = 867,812,080

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


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