Q: What are the prime factors of the number 605,144,338?

 A: 2, 19, 41, 233, 1667

Why are those the prime factors of the number 605,144,338?

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 605,144,338

605,144,338
Factor Arrows
2302,572,169
Factor Arrows
1915,924,851
Factor Arrows
41388,411
Factor Arrows
2331,667

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, 233, 1667

We can check our work by multiplying all of the prime factors together: 2 x 19 x 41 x 233 x 1,667 = 605,144,338

This can also be written as 21 x 191 x 411 x 2331 x 1,6671 = 605,144,338

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


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