Q: What are the prime factors of the number 450,411,520?

 A: 2, 5, 13, 67, 101

Why are those the prime factors of the number 450,411,520?

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 450,411,520

450,411,520
Factor Arrows
2225,205,760
Factor Arrows
2112,602,880
Factor Arrows
256,301,440
Factor Arrows
228,150,720
Factor Arrows
214,075,360
Factor Arrows
27,037,680
Factor Arrows
23,518,840
Factor Arrows
21,759,420
Factor Arrows
2879,710
Factor Arrows
2439,855
Factor Arrows
587,971
Factor Arrows
136,767
Factor Arrows
67101

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, 13, 67, 101

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 2 x 2 x 2 x 5 x 13 x 67 x 101 = 450,411,520

This can also be written as 210 x 51 x 131 x 671 x 1011 = 450,411,520

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


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