Q: What are the prime factors of the number 326,665,056?

 A: 2, 3, 997, 3413

Why are those the prime factors of the number 326,665,056?

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 326,665,056

326,665,056
Factor Arrows
2163,332,528
Factor Arrows
281,666,264
Factor Arrows
240,833,132
Factor Arrows
220,416,566
Factor Arrows
210,208,283
Factor Arrows
33,402,761
Factor Arrows
9973,413

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, 997, 3413

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 997 x 3,413 = 326,665,056

This can also be written as 25 x 31 x 9971 x 3,4131 = 326,665,056

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


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