Q: What are the prime factors of the number 55,316,224?

 A: 2, 29, 7451

Why are those the prime factors of the number 55,316,224?

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 55,316,224

55,316,224
Factor Arrows
227,658,112
Factor Arrows
213,829,056
Factor Arrows
26,914,528
Factor Arrows
23,457,264
Factor Arrows
21,728,632
Factor Arrows
2864,316
Factor Arrows
2432,158
Factor Arrows
2216,079
Factor Arrows
297,451

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, 29, 7451

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 29 x 7,451 = 55,316,224

This can also be written as 28 x 291 x 7,4511 = 55,316,224

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


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