Q: What are the prime factors of the number 90,750,396?

 A: 2, 3, 11, 29, 151, 157

Why are those the prime factors of the number 90,750,396?

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 90,750,396

90,750,396
Factor Arrows
245,375,198
Factor Arrows
222,687,599
Factor Arrows
37,562,533
Factor Arrows
11687,503
Factor Arrows
2923,707
Factor Arrows
151157

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, 29, 151, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 29 x 151 x 157 = 90,750,396

This can also be written as 22 x 31 x 111 x 291 x 1511 x 1571 = 90,750,396

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


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