Q: What are the prime factors of the number 54,216,448?

 A: 2, 11, 13, 1481

Why are those the prime factors of the number 54,216,448?

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 54,216,448

54,216,448
Factor Arrows
227,108,224
Factor Arrows
213,554,112
Factor Arrows
26,777,056
Factor Arrows
23,388,528
Factor Arrows
21,694,264
Factor Arrows
2847,132
Factor Arrows
2423,566
Factor Arrows
2211,783
Factor Arrows
1119,253
Factor Arrows
131,481

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, 11, 13, 1481

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 11 x 13 x 1,481 = 54,216,448

This can also be written as 28 x 111 x 131 x 1,4811 = 54,216,448

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


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