Q: What are the prime factors of the number 2,450,880?

 A: 2, 3, 5, 23, 37

Why are those the prime factors of the number 2,450,880?

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 2,450,880

2,450,880
Factor Arrows
21,225,440
Factor Arrows
2612,720
Factor Arrows
2306,360
Factor Arrows
2153,180
Factor Arrows
276,590
Factor Arrows
238,295
Factor Arrows
312,765
Factor Arrows
34,255
Factor Arrows
5851
Factor Arrows
2337

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, 23, 37

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 3 x 3 x 5 x 23 x 37 = 2,450,880

This can also be written as 26 x 32 x 51 x 231 x 371 = 2,450,880

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


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