Q: What are the prime factors of the number 1,146,432?

 A: 2, 3, 7, 853

Why are those the prime factors of the number 1,146,432?

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 1,146,432

1,146,432
Factor Arrows
2573,216
Factor Arrows
2286,608
Factor Arrows
2143,304
Factor Arrows
271,652
Factor Arrows
235,826
Factor Arrows
217,913
Factor Arrows
35,971
Factor Arrows
7853

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, 7, 853

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 3 x 7 x 853 = 1,146,432

This can also be written as 26 x 31 x 71 x 8531 = 1,146,432

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


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