Q: What are the prime factors of the number 100,011,000?

 A: 2, 3, 5, 17, 37, 53

Why are those the prime factors of the number 100,011,000?

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 100,011,000

100,011,000
Factor Arrows
250,005,500
Factor Arrows
225,002,750
Factor Arrows
212,501,375
Factor Arrows
34,167,125
Factor Arrows
5833,425
Factor Arrows
5166,685
Factor Arrows
533,337
Factor Arrows
171,961
Factor Arrows
3753

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, 17, 37, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 5 x 17 x 37 x 53 = 100,011,000

This can also be written as 23 x 31 x 53 x 171 x 371 x 531 = 100,011,000

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


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