Q: What are the prime factors of the number 103,040,154?

 A: 2, 3, 7, 19, 14347

Why are those the prime factors of the number 103,040,154?

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 103,040,154

103,040,154
Factor Arrows
251,520,077
Factor Arrows
317,173,359
Factor Arrows
35,724,453
Factor Arrows
31,908,151
Factor Arrows
7272,593
Factor Arrows
1914,347

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, 3, 7, 19, 14347

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 19 x 14,347 = 103,040,154

This can also be written as 21 x 33 x 71 x 191 x 14,3471 = 103,040,154

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


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