Q: What are the prime factors of the number 463,554,432?

 A: 2, 3, 11, 157, 233

Why are those the prime factors of the number 463,554,432?

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 463,554,432

463,554,432
Factor Arrows
2231,777,216
Factor Arrows
2115,888,608
Factor Arrows
257,944,304
Factor Arrows
228,972,152
Factor Arrows
214,486,076
Factor Arrows
27,243,038
Factor Arrows
23,621,519
Factor Arrows
31,207,173
Factor Arrows
3402,391
Factor Arrows
1136,581
Factor Arrows
157233

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, 11, 157, 233

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 3 x 3 x 11 x 157 x 233 = 463,554,432

This can also be written as 27 x 32 x 111 x 1571 x 2331 = 463,554,432

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


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