Q: What are the prime factors of the number 29,768,310?

 A: 2, 3, 5, 11, 13, 257

Why are those the prime factors of the number 29,768,310?

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 29,768,310

29,768,310
Factor Arrows
214,884,155
Factor Arrows
34,961,385
Factor Arrows
31,653,795
Factor Arrows
3551,265
Factor Arrows
3183,755
Factor Arrows
536,751
Factor Arrows
113,341
Factor Arrows
13257

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, 5, 11, 13, 257

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 5 x 11 x 13 x 257 = 29,768,310

This can also be written as 21 x 34 x 51 x 111 x 131 x 2571 = 29,768,310

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


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