Q: What are the prime factors of the number 154,666,148?

 A: 2, 7, 13, 101, 601

Why are those the prime factors of the number 154,666,148?

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 154,666,148

154,666,148
Factor Arrows
277,333,074
Factor Arrows
238,666,537
Factor Arrows
75,523,791
Factor Arrows
7789,113
Factor Arrows
1360,701
Factor Arrows
101601

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, 7, 13, 101, 601

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 13 x 101 x 601 = 154,666,148

This can also be written as 22 x 72 x 131 x 1011 x 6011 = 154,666,148

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


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