Q: What are the prime factors of the number 340,970,080?

 A: 2, 5, 11, 151, 1283

Why are those the prime factors of the number 340,970,080?

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 340,970,080

340,970,080
Factor Arrows
2170,485,040
Factor Arrows
285,242,520
Factor Arrows
242,621,260
Factor Arrows
221,310,630
Factor Arrows
210,655,315
Factor Arrows
52,131,063
Factor Arrows
11193,733
Factor Arrows
1511,283

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, 5, 11, 151, 1283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 151 x 1,283 = 340,970,080

This can also be written as 25 x 51 x 111 x 1511 x 1,2831 = 340,970,080

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


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