Q: What are the prime factors of the number 4,365,400?

 A: 2, 5, 13, 23, 73

Why are those the prime factors of the number 4,365,400?

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 4,365,400

4,365,400
Factor Arrows
22,182,700
Factor Arrows
21,091,350
Factor Arrows
2545,675
Factor Arrows
5109,135
Factor Arrows
521,827
Factor Arrows
131,679
Factor Arrows
2373

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, 13, 23, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 13 x 23 x 73 = 4,365,400

This can also be written as 23 x 52 x 131 x 231 x 731 = 4,365,400

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


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