Q: What are the prime factors of the number 1,969,600?

 A: 2, 5, 1231

Why are those the prime factors of the number 1,969,600?

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 1,969,600

1,969,600
Factor Arrows
2984,800
Factor Arrows
2492,400
Factor Arrows
2246,200
Factor Arrows
2123,100
Factor Arrows
261,550
Factor Arrows
230,775
Factor Arrows
56,155
Factor Arrows
51,231

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, 1231

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 1,231 = 1,969,600

This can also be written as 26 x 52 x 1,2311 = 1,969,600

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


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