Q: What are the prime factors of the number 17,634,400?

 A: 2, 5, 7, 47, 67

Why are those the prime factors of the number 17,634,400?

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 17,634,400

17,634,400
Factor Arrows
28,817,200
Factor Arrows
24,408,600
Factor Arrows
22,204,300
Factor Arrows
21,102,150
Factor Arrows
2551,075
Factor Arrows
5110,215
Factor Arrows
522,043
Factor Arrows
73,149
Factor Arrows
4767

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, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 7 x 47 x 67 = 17,634,400

This can also be written as 25 x 52 x 71 x 471 x 671 = 17,634,400

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


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