Q: What are the prime factors of the number 1,926,288?

 A: 2, 3, 7, 13

Why are those the prime factors of the number 1,926,288?

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 1,926,288

1,926,288
Factor Arrows
2963,144
Factor Arrows
2481,572
Factor Arrows
2240,786
Factor Arrows
2120,393
Factor Arrows
340,131
Factor Arrows
313,377
Factor Arrows
34,459
Factor Arrows
7637
Factor Arrows
791
Factor Arrows
713

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, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 7 x 7 x 13 = 1,926,288

This can also be written as 24 x 33 x 73 x 131 = 1,926,288

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


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