Q: What are the prime factors of the number 153,345,015?

 A: 3, 5, 17, 109, 613

Why are those the prime factors of the number 153,345,015?

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 153,345,015

153,345,015
Factor Arrows
351,115,005
Factor Arrows
317,038,335
Factor Arrows
35,679,445
Factor Arrows
51,135,889
Factor Arrows
1766,817
Factor Arrows
109613

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:

3, 5, 17, 109, 613

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 17 x 109 x 613 = 153,345,015

This can also be written as 33 x 51 x 171 x 1091 x 6131 = 153,345,015

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


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