Q: What are the prime factors of the number 42,432,384?

 A: 2, 3, 110501

Why are those the prime factors of the number 42,432,384?

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 42,432,384

42,432,384
Factor Arrows
221,216,192
Factor Arrows
210,608,096
Factor Arrows
25,304,048
Factor Arrows
22,652,024
Factor Arrows
21,326,012
Factor Arrows
2663,006
Factor Arrows
2331,503
Factor Arrows
3110,501

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, 110501

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 110,501 = 42,432,384

This can also be written as 27 x 31 x 110,5011 = 42,432,384

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


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