Q: What are the prime factors of the number 1,098,368?

 A: 2, 8581

Why are those the prime factors of the number 1,098,368?

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 1,098,368

1,098,368
Factor Arrows
2549,184
Factor Arrows
2274,592
Factor Arrows
2137,296
Factor Arrows
268,648
Factor Arrows
234,324
Factor Arrows
217,162
Factor Arrows
28,581

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, 8581

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 8,581 = 1,098,368

This can also be written as 27 x 8,5811 = 1,098,368

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


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