Q: What are the prime factors of the number 102,151,168?

 A: 2, 7, 14251

Why are those the prime factors of the number 102,151,168?

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 102,151,168

102,151,168
Factor Arrows
251,075,584
Factor Arrows
225,537,792
Factor Arrows
212,768,896
Factor Arrows
26,384,448
Factor Arrows
23,192,224
Factor Arrows
21,596,112
Factor Arrows
2798,056
Factor Arrows
2399,028
Factor Arrows
2199,514
Factor Arrows
299,757
Factor Arrows
714,251

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, 7, 14251

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 7 x 14,251 = 102,151,168

This can also be written as 210 x 71 x 14,2511 = 102,151,168

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


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