Q: What are the prime factors of the number 29,311,272?

 A: 2, 3, 157, 2593

Why are those the prime factors of the number 29,311,272?

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 29,311,272

29,311,272
Factor Arrows
214,655,636
Factor Arrows
27,327,818
Factor Arrows
23,663,909
Factor Arrows
31,221,303
Factor Arrows
3407,101
Factor Arrows
1572,593

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, 157, 2593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 157 x 2,593 = 29,311,272

This can also be written as 23 x 32 x 1571 x 2,5931 = 29,311,272

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


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