Q: What are the prime factors of the number 153,543,360?

 A: 2, 3, 5, 41, 47, 83

Why are those the prime factors of the number 153,543,360?

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 153,543,360

153,543,360
Factor Arrows
276,771,680
Factor Arrows
238,385,840
Factor Arrows
219,192,920
Factor Arrows
29,596,460
Factor Arrows
24,798,230
Factor Arrows
22,399,115
Factor Arrows
3799,705
Factor Arrows
5159,941
Factor Arrows
413,901
Factor Arrows
4783

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, 5, 41, 47, 83

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 3 x 5 x 41 x 47 x 83 = 153,543,360

This can also be written as 26 x 31 x 51 x 411 x 471 x 831 = 153,543,360

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


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