Q: What are the prime factors of the number 90,028,232?

 A: 2, 7, 19, 191, 443

Why are those the prime factors of the number 90,028,232?

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 90,028,232

90,028,232
Factor Arrows
245,014,116
Factor Arrows
222,507,058
Factor Arrows
211,253,529
Factor Arrows
71,607,647
Factor Arrows
1984,613
Factor Arrows
191443

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, 7, 19, 191, 443

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 19 x 191 x 443 = 90,028,232

This can also be written as 23 x 71 x 191 x 1911 x 4431 = 90,028,232

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


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