Q: What are the prime factors of the number 2,629,424?

 A: 2, 7, 17, 1381

Why are those the prime factors of the number 2,629,424?

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 2,629,424

2,629,424
Factor Arrows
21,314,712
Factor Arrows
2657,356
Factor Arrows
2328,678
Factor Arrows
2164,339
Factor Arrows
723,477
Factor Arrows
171,381

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, 17, 1381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 17 x 1,381 = 2,629,424

This can also be written as 24 x 71 x 171 x 1,3811 = 2,629,424

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


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