Q: What are the prime factors of the number 320,122,000?

 A: 2, 5, 11, 14551

Why are those the prime factors of the number 320,122,000?

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 320,122,000

320,122,000
Factor Arrows
2160,061,000
Factor Arrows
280,030,500
Factor Arrows
240,015,250
Factor Arrows
220,007,625
Factor Arrows
54,001,525
Factor Arrows
5800,305
Factor Arrows
5160,061
Factor Arrows
1114,551

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, 11, 14551

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 11 x 14,551 = 320,122,000

This can also be written as 24 x 53 x 111 x 14,5511 = 320,122,000

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


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