Q: What are the prime factors of the number 39,825,432?

 A: 2, 3, 41, 1499

Why are those the prime factors of the number 39,825,432?

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 39,825,432

39,825,432
Factor Arrows
219,912,716
Factor Arrows
29,956,358
Factor Arrows
24,978,179
Factor Arrows
31,659,393
Factor Arrows
3553,131
Factor Arrows
3184,377
Factor Arrows
361,459
Factor Arrows
411,499

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, 41, 1499

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 41 x 1,499 = 39,825,432

This can also be written as 23 x 34 x 411 x 1,4991 = 39,825,432

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


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