Q: What are the prime factors of the number 11,378,000?

 A: 2, 5, 5689

Why are those the prime factors of the number 11,378,000?

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 11,378,000

11,378,000
Factor Arrows
25,689,000
Factor Arrows
22,844,500
Factor Arrows
21,422,250
Factor Arrows
2711,125
Factor Arrows
5142,225
Factor Arrows
528,445
Factor Arrows
55,689

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, 5689

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5,689 = 11,378,000

This can also be written as 24 x 53 x 5,6891 = 11,378,000

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


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