Q: What are the prime factors of the number 38,101,140?

 A: 2, 3, 5, 7, 11, 2749

Why are those the prime factors of the number 38,101,140?

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 38,101,140

38,101,140
Factor Arrows
219,050,570
Factor Arrows
29,525,285
Factor Arrows
33,175,095
Factor Arrows
31,058,365
Factor Arrows
5211,673
Factor Arrows
730,239
Factor Arrows
112,749

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, 5, 7, 11, 2749

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 7 x 11 x 2,749 = 38,101,140

This can also be written as 22 x 32 x 51 x 71 x 111 x 2,7491 = 38,101,140

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


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