Q: What are the prime factors of the number 1,262,400?

 A: 2, 3, 5, 263

Why are those the prime factors of the number 1,262,400?

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 1,262,400

1,262,400
Factor Arrows
2631,200
Factor Arrows
2315,600
Factor Arrows
2157,800
Factor Arrows
278,900
Factor Arrows
239,450
Factor Arrows
219,725
Factor Arrows
36,575
Factor Arrows
51,315
Factor Arrows
5263

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, 3, 5, 263

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 3 x 5 x 5 x 263 = 1,262,400

This can also be written as 26 x 31 x 52 x 2631 = 1,262,400

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


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