Q: What are the prime factors of the number 5,258,880?

 A: 2, 3, 5, 11, 83

Why are those the prime factors of the number 5,258,880?

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 5,258,880

5,258,880
Factor Arrows
22,629,440
Factor Arrows
21,314,720
Factor Arrows
2657,360
Factor Arrows
2328,680
Factor Arrows
2164,340
Factor Arrows
282,170
Factor Arrows
241,085
Factor Arrows
313,695
Factor Arrows
34,565
Factor Arrows
5913
Factor Arrows
1183

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, 11, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 11 x 83 = 5,258,880

This can also be written as 27 x 32 x 51 x 111 x 831 = 5,258,880

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


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