Q: What are the prime factors of the number 465,000,128?

 A: 2, 1187, 6121

Why are those the prime factors of the number 465,000,128?

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 465,000,128

465,000,128
Factor Arrows
2232,500,064
Factor Arrows
2116,250,032
Factor Arrows
258,125,016
Factor Arrows
229,062,508
Factor Arrows
214,531,254
Factor Arrows
27,265,627
Factor Arrows
1,1876,121

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, 1187, 6121

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 1,187 x 6,121 = 465,000,128

This can also be written as 26 x 1,1871 x 6,1211 = 465,000,128

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


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