Q: What are the prime factors of the number 340,343,424?

 A: 2, 3, 98479

Why are those the prime factors of the number 340,343,424?

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 340,343,424

340,343,424
Factor Arrows
2170,171,712
Factor Arrows
285,085,856
Factor Arrows
242,542,928
Factor Arrows
221,271,464
Factor Arrows
210,635,732
Factor Arrows
25,317,866
Factor Arrows
22,658,933
Factor Arrows
3886,311
Factor Arrows
3295,437
Factor Arrows
398,479

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, 98479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 98,479 = 340,343,424

This can also be written as 27 x 33 x 98,4791 = 340,343,424

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


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