Q: What are the prime factors of the number 155,002,304?

 A: 2, 19, 41, 3109

Why are those the prime factors of the number 155,002,304?

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 155,002,304

155,002,304
Factor Arrows
277,501,152
Factor Arrows
238,750,576
Factor Arrows
219,375,288
Factor Arrows
29,687,644
Factor Arrows
24,843,822
Factor Arrows
22,421,911
Factor Arrows
19127,469
Factor Arrows
413,109

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, 19, 41, 3109

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 19 x 41 x 3,109 = 155,002,304

This can also be written as 26 x 191 x 411 x 3,1091 = 155,002,304

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


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