Q: What are the prime factors of the number 1,473,312?

 A: 2, 3, 103, 149

Why are those the prime factors of the number 1,473,312?

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 1,473,312

1,473,312
Factor Arrows
2736,656
Factor Arrows
2368,328
Factor Arrows
2184,164
Factor Arrows
292,082
Factor Arrows
246,041
Factor Arrows
315,347
Factor Arrows
103149

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, 103, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 103 x 149 = 1,473,312

This can also be written as 25 x 31 x 1031 x 1491 = 1,473,312

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


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