Q: What are the prime factors of the number 4,342,400?

 A: 2, 5, 23, 59

Why are those the prime factors of the number 4,342,400?

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 4,342,400

4,342,400
Factor Arrows
22,171,200
Factor Arrows
21,085,600
Factor Arrows
2542,800
Factor Arrows
2271,400
Factor Arrows
2135,700
Factor Arrows
267,850
Factor Arrows
233,925
Factor Arrows
56,785
Factor Arrows
51,357
Factor Arrows
2359

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, 23, 59

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 2 x 5 x 5 x 23 x 59 = 4,342,400

This can also be written as 27 x 52 x 231 x 591 = 4,342,400

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


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