Q: What are the prime factors of the number 2,770,380?

 A: 2, 3, 5, 15391

Why are those the prime factors of the number 2,770,380?

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 2,770,380

2,770,380
Factor Arrows
21,385,190
Factor Arrows
2692,595
Factor Arrows
3230,865
Factor Arrows
376,955
Factor Arrows
515,391

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, 3, 5, 15391

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 15,391 = 2,770,380

This can also be written as 22 x 32 x 51 x 15,3911 = 2,770,380

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


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