Q: What are the prime factors of the number 54,306,450?

 A: 2, 3, 5, 11, 23, 53

Why are those the prime factors of the number 54,306,450?

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 54,306,450

54,306,450
Factor Arrows
227,153,225
Factor Arrows
39,051,075
Factor Arrows
33,017,025
Factor Arrows
31,005,675
Factor Arrows
3335,225
Factor Arrows
567,045
Factor Arrows
513,409
Factor Arrows
111,219
Factor Arrows
2353

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, 23, 53

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 5 x 5 x 11 x 23 x 53 = 54,306,450

This can also be written as 21 x 34 x 52 x 111 x 231 x 531 = 54,306,450

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


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