Q: What are the prime factors of the number 153,553,146?

 A: 2, 3, 17, 67, 22469

Why are those the prime factors of the number 153,553,146?

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 153,553,146

153,553,146
Factor Arrows
276,776,573
Factor Arrows
325,592,191
Factor Arrows
171,505,423
Factor Arrows
6722,469

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, 67, 22469

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 67 x 22,469 = 153,553,146

This can also be written as 21 x 31 x 171 x 671 x 22,4691 = 153,553,146

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


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