Q: What are the prime factors of the number 192,868,128?

 A: 2, 3, 17, 1459

Why are those the prime factors of the number 192,868,128?

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 192,868,128

192,868,128
Factor Arrows
296,434,064
Factor Arrows
248,217,032
Factor Arrows
224,108,516
Factor Arrows
212,054,258
Factor Arrows
26,027,129
Factor Arrows
32,009,043
Factor Arrows
3669,681
Factor Arrows
3223,227
Factor Arrows
374,409
Factor Arrows
324,803
Factor Arrows
171,459

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, 17, 1459

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 17 x 1,459 = 192,868,128

This can also be written as 25 x 35 x 171 x 1,4591 = 192,868,128

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


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