Q: What are the prime factors of the number 402,064,304?

 A: 2, 25129019

Why are those the prime factors of the number 402,064,304?

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 402,064,304

402,064,304
Factor Arrows
2201,032,152
Factor Arrows
2100,516,076
Factor Arrows
250,258,038
Factor Arrows
225,129,019

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, 25129019

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 25,129,019 = 402,064,304

This can also be written as 24 x 25,129,0191 = 402,064,304

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


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