Q: What are the prime factors of the number 1,180,416?

 A: 2, 3, 29, 53

Why are those the prime factors of the number 1,180,416?

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 1,180,416

1,180,416
Factor Arrows
2590,208
Factor Arrows
2295,104
Factor Arrows
2147,552
Factor Arrows
273,776
Factor Arrows
236,888
Factor Arrows
218,444
Factor Arrows
29,222
Factor Arrows
24,611
Factor Arrows
31,537
Factor Arrows
2953

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, 29, 53

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 2 x 3 x 29 x 53 = 1,180,416

This can also be written as 28 x 31 x 291 x 531 = 1,180,416

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


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