Q: What are the prime factors of the number 153,231,456?

 A: 2, 3, 7, 228023

Why are those the prime factors of the number 153,231,456?

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 153,231,456

153,231,456
Factor Arrows
276,615,728
Factor Arrows
238,307,864
Factor Arrows
219,153,932
Factor Arrows
29,576,966
Factor Arrows
24,788,483
Factor Arrows
31,596,161
Factor Arrows
7228,023

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, 7, 228023

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 228,023 = 153,231,456

This can also be written as 25 x 31 x 71 x 228,0231 = 153,231,456

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


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