Q: What are the prime factors of the number 1,041,152?

 A: 2, 7, 83

Why are those the prime factors of the number 1,041,152?

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 1,041,152

1,041,152
Factor Arrows
2520,576
Factor Arrows
2260,288
Factor Arrows
2130,144
Factor Arrows
265,072
Factor Arrows
232,536
Factor Arrows
216,268
Factor Arrows
28,134
Factor Arrows
24,067
Factor Arrows
7581
Factor Arrows
783

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, 7, 83

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 7 x 7 x 83 = 1,041,152

This can also be written as 28 x 72 x 831 = 1,041,152

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


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