Q: What are the prime factors of the number 154,435,545?

 A: 3, 5, 11, 103997

Why are those the prime factors of the number 154,435,545?

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 154,435,545

154,435,545
Factor Arrows
351,478,515
Factor Arrows
317,159,505
Factor Arrows
35,719,835
Factor Arrows
51,143,967
Factor Arrows
11103,997

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:

3, 5, 11, 103997

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 11 x 103,997 = 154,435,545

This can also be written as 33 x 51 x 111 x 103,9971 = 154,435,545

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


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