Q: What are the prime factors of the number 411,405,324?

 A: 2, 3, 11, 23, 97, 127

Why are those the prime factors of the number 411,405,324?

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 411,405,324

411,405,324
Factor Arrows
2205,702,662
Factor Arrows
2102,851,331
Factor Arrows
334,283,777
Factor Arrows
113,116,707
Factor Arrows
11283,337
Factor Arrows
2312,319
Factor Arrows
97127

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, 11, 23, 97, 127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 11 x 23 x 97 x 127 = 411,405,324

This can also be written as 22 x 31 x 112 x 231 x 971 x 1271 = 411,405,324

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


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