Q: What are the prime factors of the number 154,418,120?

 A: 2, 5, 107, 109, 331

Why are those the prime factors of the number 154,418,120?

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 154,418,120

154,418,120
Factor Arrows
277,209,060
Factor Arrows
238,604,530
Factor Arrows
219,302,265
Factor Arrows
53,860,453
Factor Arrows
10736,079
Factor Arrows
109331

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, 5, 107, 109, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 107 x 109 x 331 = 154,418,120

This can also be written as 23 x 51 x 1071 x 1091 x 3311 = 154,418,120

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


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