Q: What are the prime factors of the number 73,223,400?

 A: 2, 3, 5, 122039

Why are those the prime factors of the number 73,223,400?

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 73,223,400

73,223,400
Factor Arrows
236,611,700
Factor Arrows
218,305,850
Factor Arrows
29,152,925
Factor Arrows
33,050,975
Factor Arrows
5610,195
Factor Arrows
5122,039

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, 122039

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 122,039 = 73,223,400

This can also be written as 23 x 31 x 52 x 122,0391 = 73,223,400

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


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