Q: What are the prime factors of the number 55,214,250?

 A: 2, 3, 5, 7, 13, 809

Why are those the prime factors of the number 55,214,250?

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 55,214,250

55,214,250
Factor Arrows
227,607,125
Factor Arrows
39,202,375
Factor Arrows
51,840,475
Factor Arrows
5368,095
Factor Arrows
573,619
Factor Arrows
710,517
Factor Arrows
13809

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, 5, 7, 13, 809

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 7 x 13 x 809 = 55,214,250

This can also be written as 21 x 31 x 53 x 71 x 131 x 8091 = 55,214,250

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


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