Q: What are the prime factors of the number 152,122,208?

 A: 2, 7, 19, 31, 1153

Why are those the prime factors of the number 152,122,208?

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 152,122,208

152,122,208
Factor Arrows
276,061,104
Factor Arrows
238,030,552
Factor Arrows
219,015,276
Factor Arrows
29,507,638
Factor Arrows
24,753,819
Factor Arrows
7679,117
Factor Arrows
1935,743
Factor Arrows
311,153

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, 19, 31, 1153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 19 x 31 x 1,153 = 152,122,208

This can also be written as 25 x 71 x 191 x 311 x 1,1531 = 152,122,208

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


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