Q: What are the prime factors of the number 346,320,648?

 A: 2, 3, 157, 30637

Why are those the prime factors of the number 346,320,648?

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 346,320,648

346,320,648
Factor Arrows
2173,160,324
Factor Arrows
286,580,162
Factor Arrows
243,290,081
Factor Arrows
314,430,027
Factor Arrows
34,810,009
Factor Arrows
15730,637

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, 157, 30637

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 157 x 30,637 = 346,320,648

This can also be written as 23 x 32 x 1571 x 30,6371 = 346,320,648

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


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