Q: What are the prime factors of the number 2,345,994?

 A: 2, 3, 7, 43, 433

Why are those the prime factors of the number 2,345,994?

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 2,345,994

2,345,994
Factor Arrows
21,172,997
Factor Arrows
3390,999
Factor Arrows
3130,333
Factor Arrows
718,619
Factor Arrows
43433

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, 7, 43, 433

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 43 x 433 = 2,345,994

This can also be written as 21 x 32 x 71 x 431 x 4331 = 2,345,994

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


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