Q: What are the prime factors of the number 153,553,152?

 A: 2, 3, 23, 8693

Why are those the prime factors of the number 153,553,152?

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 153,553,152

153,553,152
Factor Arrows
276,776,576
Factor Arrows
238,388,288
Factor Arrows
219,194,144
Factor Arrows
29,597,072
Factor Arrows
24,798,536
Factor Arrows
22,399,268
Factor Arrows
21,199,634
Factor Arrows
2599,817
Factor Arrows
3199,939
Factor Arrows
238,693

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, 23, 8693

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 2 x 3 x 23 x 8,693 = 153,553,152

This can also be written as 28 x 31 x 231 x 8,6931 = 153,553,152

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


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