Q: What are the prime factors of the number 371,151,200?

 A: 2, 5, 7, 191, 347

Why are those the prime factors of the number 371,151,200?

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 371,151,200

371,151,200
Factor Arrows
2185,575,600
Factor Arrows
292,787,800
Factor Arrows
246,393,900
Factor Arrows
223,196,950
Factor Arrows
211,598,475
Factor Arrows
52,319,695
Factor Arrows
5463,939
Factor Arrows
766,277
Factor Arrows
191347

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, 191, 347

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 191 x 347 = 371,151,200

This can also be written as 25 x 52 x 71 x 1911 x 3471 = 371,151,200

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


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