Q: What are the prime factors of the number 39,411,144?

 A: 2, 3, 23, 7933

Why are those the prime factors of the number 39,411,144?

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 39,411,144

39,411,144
Factor Arrows
219,705,572
Factor Arrows
29,852,786
Factor Arrows
24,926,393
Factor Arrows
31,642,131
Factor Arrows
3547,377
Factor Arrows
3182,459
Factor Arrows
237,933

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, 23, 7933

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 23 x 7,933 = 39,411,144

This can also be written as 23 x 33 x 231 x 7,9331 = 39,411,144

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


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