Q: What are the prime factors of the number 372,576,105?

 A: 3, 5, 11, 61, 457

Why are those the prime factors of the number 372,576,105?

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 372,576,105

372,576,105
Factor Arrows
3124,192,035
Factor Arrows
341,397,345
Factor Arrows
313,799,115
Factor Arrows
34,599,705
Factor Arrows
31,533,235
Factor Arrows
5306,647
Factor Arrows
1127,877
Factor Arrows
61457

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:

3, 5, 11, 61, 457

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 11 x 61 x 457 = 372,576,105

This can also be written as 35 x 51 x 111 x 611 x 4571 = 372,576,105

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


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