Q: What are the prime factors of the number 368,538,174?

 A: 2, 3, 19, 107, 373

Why are those the prime factors of the number 368,538,174?

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 368,538,174

368,538,174
Factor Arrows
2184,269,087
Factor Arrows
361,423,029
Factor Arrows
320,474,343
Factor Arrows
36,824,781
Factor Arrows
32,274,927
Factor Arrows
3758,309
Factor Arrows
1939,911
Factor Arrows
107373

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, 19, 107, 373

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 19 x 107 x 373 = 368,538,174

This can also be written as 21 x 35 x 191 x 1071 x 3731 = 368,538,174

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


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