Q: What are the prime factors of the number 245,676,040?

 A: 2, 5, 821, 7481

Why are those the prime factors of the number 245,676,040?

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 245,676,040

245,676,040
Factor Arrows
2122,838,020
Factor Arrows
261,419,010
Factor Arrows
230,709,505
Factor Arrows
56,141,901
Factor Arrows
8217,481

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, 821, 7481

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 821 x 7,481 = 245,676,040

This can also be written as 23 x 51 x 8211 x 7,4811 = 245,676,040

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


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