Q: What are the prime factors of the number 43,432,256?

 A: 2, 7, 29, 3343

Why are those the prime factors of the number 43,432,256?

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 43,432,256

43,432,256
Factor Arrows
221,716,128
Factor Arrows
210,858,064
Factor Arrows
25,429,032
Factor Arrows
22,714,516
Factor Arrows
21,357,258
Factor Arrows
2678,629
Factor Arrows
796,947
Factor Arrows
293,343

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, 7, 29, 3343

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 7 x 29 x 3,343 = 43,432,256

This can also be written as 26 x 71 x 291 x 3,3431 = 43,432,256

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


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