Q: What are the prime factors of the number 345,140,416?

 A: 2, 5392819

Why are those the prime factors of the number 345,140,416?

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 345,140,416

345,140,416
Factor Arrows
2172,570,208
Factor Arrows
286,285,104
Factor Arrows
243,142,552
Factor Arrows
221,571,276
Factor Arrows
210,785,638
Factor Arrows
25,392,819

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, 5392819

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 5,392,819 = 345,140,416

This can also be written as 26 x 5,392,8191 = 345,140,416

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


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