Q: What are the prime factors of the number 53,342,464?

 A: 2, 7, 17, 103

Why are those the prime factors of the number 53,342,464?

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 53,342,464

53,342,464
Factor Arrows
226,671,232
Factor Arrows
213,335,616
Factor Arrows
26,667,808
Factor Arrows
23,333,904
Factor Arrows
21,666,952
Factor Arrows
2833,476
Factor Arrows
2416,738
Factor Arrows
2208,369
Factor Arrows
729,767
Factor Arrows
171,751
Factor Arrows
17103

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, 103

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 17 x 17 x 103 = 53,342,464

This can also be written as 28 x 71 x 172 x 1031 = 53,342,464

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


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