Q: What are the prime factors of the number 1,479,408?

 A: 2, 3, 7, 17, 37

Why are those the prime factors of the number 1,479,408?

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 1,479,408

1,479,408
Factor Arrows
2739,704
Factor Arrows
2369,852
Factor Arrows
2184,926
Factor Arrows
292,463
Factor Arrows
330,821
Factor Arrows
74,403
Factor Arrows
7629
Factor Arrows
1737

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, 17, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 17 x 37 = 1,479,408

This can also be written as 24 x 31 x 72 x 171 x 371 = 1,479,408

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


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