Q: What are the prime factors of the number 29,947,705?

 A: 5, 19, 31, 10169

Why are those the prime factors of the number 29,947,705?

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 29,947,705

29,947,705
Factor Arrows
55,989,541
Factor Arrows
19315,239
Factor Arrows
3110,169

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:

5, 19, 31, 10169

We can check our work by multiplying all of the prime factors together: 5 x 19 x 31 x 10,169 = 29,947,705

This can also be written as 51 x 191 x 311 x 10,1691 = 29,947,705

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


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