Q: What are the prime factors of the number 1,617,880?

 A: 2, 5, 11, 3677

Why are those the prime factors of the number 1,617,880?

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 1,617,880

1,617,880
Factor Arrows
2808,940
Factor Arrows
2404,470
Factor Arrows
2202,235
Factor Arrows
540,447
Factor Arrows
113,677

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, 3677

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 3,677 = 1,617,880

This can also be written as 23 x 51 x 111 x 3,6771 = 1,617,880

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


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