Q: What are the prime factors of the number 135,523,328?

 A: 2, 132347

Why are those the prime factors of the number 135,523,328?

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 135,523,328

135,523,328
Factor Arrows
267,761,664
Factor Arrows
233,880,832
Factor Arrows
216,940,416
Factor Arrows
28,470,208
Factor Arrows
24,235,104
Factor Arrows
22,117,552
Factor Arrows
21,058,776
Factor Arrows
2529,388
Factor Arrows
2264,694
Factor Arrows
2132,347

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, 132347

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 2 x 2 x 132,347 = 135,523,328

This can also be written as 210 x 132,3471 = 135,523,328

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


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