Q: What are the prime factors of the number 2,455,488?

 A: 2, 3, 7, 29

Why are those the prime factors of the number 2,455,488?

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 2,455,488

2,455,488
Factor Arrows
21,227,744
Factor Arrows
2613,872
Factor Arrows
2306,936
Factor Arrows
2153,468
Factor Arrows
276,734
Factor Arrows
238,367
Factor Arrows
312,789
Factor Arrows
34,263
Factor Arrows
31,421
Factor Arrows
7203
Factor Arrows
729

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, 7, 29

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 3 x 7 x 7 x 29 = 2,455,488

This can also be written as 26 x 33 x 72 x 291 = 2,455,488

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


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