Q: What are the prime factors of the number 411,254,145?

 A: 3, 5, 19, 23, 6971

Why are those the prime factors of the number 411,254,145?

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 411,254,145

411,254,145
Factor Arrows
3137,084,715
Factor Arrows
345,694,905
Factor Arrows
315,231,635
Factor Arrows
53,046,327
Factor Arrows
19160,333
Factor Arrows
236,971

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:

3, 5, 19, 23, 6971

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 19 x 23 x 6,971 = 411,254,145

This can also be written as 33 x 51 x 191 x 231 x 6,9711 = 411,254,145

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


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