Q: What are the prime factors of the number 55,421,352?

 A: 2, 3, 7, 23, 683

Why are those the prime factors of the number 55,421,352?

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 55,421,352

55,421,352
Factor Arrows
227,710,676
Factor Arrows
213,855,338
Factor Arrows
26,927,669
Factor Arrows
32,309,223
Factor Arrows
3769,741
Factor Arrows
7109,963
Factor Arrows
715,709
Factor Arrows
23683

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, 23, 683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 7 x 23 x 683 = 55,421,352

This can also be written as 23 x 32 x 72 x 231 x 6831 = 55,421,352

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


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