Q: What are the prime factors of the number 401,436,432?

 A: 2, 3, 929251

Why are those the prime factors of the number 401,436,432?

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 401,436,432

401,436,432
Factor Arrows
2200,718,216
Factor Arrows
2100,359,108
Factor Arrows
250,179,554
Factor Arrows
225,089,777
Factor Arrows
38,363,259
Factor Arrows
32,787,753
Factor Arrows
3929,251

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, 929251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 929,251 = 401,436,432

This can also be written as 24 x 33 x 929,2511 = 401,436,432

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


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