Q: What are the prime factors of the number 154,402,432?

 A: 2, 17, 70957

Why are those the prime factors of the number 154,402,432?

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 154,402,432

154,402,432
Factor Arrows
277,201,216
Factor Arrows
238,600,608
Factor Arrows
219,300,304
Factor Arrows
29,650,152
Factor Arrows
24,825,076
Factor Arrows
22,412,538
Factor Arrows
21,206,269
Factor Arrows
1770,957

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, 17, 70957

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 17 x 70,957 = 154,402,432

This can also be written as 27 x 171 x 70,9571 = 154,402,432

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


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