Q: What are the prime factors of the number 1,889,600?

 A: 2, 5, 1181

Why are those the prime factors of the number 1,889,600?

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 1,889,600

1,889,600
Factor Arrows
2944,800
Factor Arrows
2472,400
Factor Arrows
2236,200
Factor Arrows
2118,100
Factor Arrows
259,050
Factor Arrows
229,525
Factor Arrows
55,905
Factor Arrows
51,181

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, 1181

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 1,181 = 1,889,600

This can also be written as 26 x 52 x 1,1811 = 1,889,600

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


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