Q: What are the prime factors of the number 4,103,424?

 A: 2, 3, 13, 137

Why are those the prime factors of the number 4,103,424?

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 4,103,424

4,103,424
Factor Arrows
22,051,712
Factor Arrows
21,025,856
Factor Arrows
2512,928
Factor Arrows
2256,464
Factor Arrows
2128,232
Factor Arrows
264,116
Factor Arrows
232,058
Factor Arrows
216,029
Factor Arrows
35,343
Factor Arrows
31,781
Factor Arrows
13137

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, 13, 137

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 3 x 13 x 137 = 4,103,424

This can also be written as 28 x 32 x 131 x 1371 = 4,103,424

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


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