Q: What are the prime factors of the number 53,401,250?

 A: 2, 5, 7, 17, 359

Why are those the prime factors of the number 53,401,250?

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 53,401,250

53,401,250
Factor Arrows
226,700,625
Factor Arrows
55,340,125
Factor Arrows
51,068,025
Factor Arrows
5213,605
Factor Arrows
542,721
Factor Arrows
76,103
Factor Arrows
17359

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, 5, 7, 17, 359

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 5 x 7 x 17 x 359 = 53,401,250

This can also be written as 21 x 54 x 71 x 171 x 3591 = 53,401,250

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


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