Q: What are the prime factors of the number 40,102,335?

 A: 3, 5, 7, 13, 1399

Why are those the prime factors of the number 40,102,335?

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 40,102,335

40,102,335
Factor Arrows
313,367,445
Factor Arrows
34,455,815
Factor Arrows
5891,163
Factor Arrows
7127,309
Factor Arrows
718,187
Factor Arrows
131,399

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:

3, 5, 7, 13, 1399

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 7 x 13 x 1,399 = 40,102,335

This can also be written as 32 x 51 x 72 x 131 x 1,3991 = 40,102,335

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


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