Q: What are the prime factors of the number 19,459,232?

 A: 2, 13, 29, 1613

Why are those the prime factors of the number 19,459,232?

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 19,459,232

19,459,232
Factor Arrows
29,729,616
Factor Arrows
24,864,808
Factor Arrows
22,432,404
Factor Arrows
21,216,202
Factor Arrows
2608,101
Factor Arrows
1346,777
Factor Arrows
291,613

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, 13, 29, 1613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 29 x 1,613 = 19,459,232

This can also be written as 25 x 131 x 291 x 1,6131 = 19,459,232

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


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