Q: What are the prime factors of the number 345,234,408?

 A: 2, 3, 19, 39847

Why are those the prime factors of the number 345,234,408?

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 345,234,408

345,234,408
Factor Arrows
2172,617,204
Factor Arrows
286,308,602
Factor Arrows
243,154,301
Factor Arrows
314,384,767
Factor Arrows
19757,093
Factor Arrows
1939,847

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, 39847

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 19 x 19 x 39,847 = 345,234,408

This can also be written as 23 x 31 x 192 x 39,8471 = 345,234,408

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


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