Q: What are the prime factors of the number 710,425,728?

 A: 2, 3, 68521

Why are those the prime factors of the number 710,425,728?

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 710,425,728

710,425,728
Factor Arrows
2355,212,864
Factor Arrows
2177,606,432
Factor Arrows
288,803,216
Factor Arrows
244,401,608
Factor Arrows
222,200,804
Factor Arrows
211,100,402
Factor Arrows
25,550,201
Factor Arrows
31,850,067
Factor Arrows
3616,689
Factor Arrows
3205,563
Factor Arrows
368,521

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, 68521

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 3 x 68,521 = 710,425,728

This can also be written as 27 x 34 x 68,5211 = 710,425,728

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


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