Q: What are the prime factors of the number 824,258,380?

 A: 2, 5, 11, 19, 31, 6361

Why are those the prime factors of the number 824,258,380?

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 824,258,380

824,258,380
Factor Arrows
2412,129,190
Factor Arrows
2206,064,595
Factor Arrows
541,212,919
Factor Arrows
113,746,629
Factor Arrows
19197,191
Factor Arrows
316,361

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, 19, 31, 6361

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 19 x 31 x 6,361 = 824,258,380

This can also be written as 22 x 51 x 111 x 191 x 311 x 6,3611 = 824,258,380

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


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