Q: What are the prime factors of the number 526,400?

 A: 2, 5, 7, 47

Why are those the prime factors of the number 526,400?

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 526,400

526,400
Factor Arrows
2263,200
Factor Arrows
2131,600
Factor Arrows
265,800
Factor Arrows
232,900
Factor Arrows
216,450
Factor Arrows
28,225
Factor Arrows
51,645
Factor Arrows
5329
Factor Arrows
747

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, 7, 47

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 7 x 47 = 526,400

This can also be written as 26 x 52 x 71 x 471 = 526,400

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


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