Q: What are the prime factors of the number 50,494,400?

 A: 2, 5, 11, 19, 151

Why are those the prime factors of the number 50,494,400?

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 50,494,400

50,494,400
Factor Arrows
225,247,200
Factor Arrows
212,623,600
Factor Arrows
26,311,800
Factor Arrows
23,155,900
Factor Arrows
21,577,950
Factor Arrows
2788,975
Factor Arrows
5157,795
Factor Arrows
531,559
Factor Arrows
112,869
Factor Arrows
19151

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, 11, 19, 151

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 5 x 5 x 11 x 19 x 151 = 50,494,400

This can also be written as 26 x 52 x 111 x 191 x 1511 = 50,494,400

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


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