Q: What are the prime factors of the number 90,452,538?

 A: 2, 3, 11, 193, 263

Why are those the prime factors of the number 90,452,538?

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 90,452,538

90,452,538
Factor Arrows
245,226,269
Factor Arrows
315,075,423
Factor Arrows
35,025,141
Factor Arrows
31,675,047
Factor Arrows
3558,349
Factor Arrows
1150,759
Factor Arrows
193263

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, 193, 263

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 193 x 263 = 90,452,538

This can also be written as 21 x 34 x 111 x 1931 x 2631 = 90,452,538

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


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