Q: What are the prime factors of the number 749,568?

 A: 2, 3, 61

Why are those the prime factors of the number 749,568?

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 749,568

749,568
Factor Arrows
2374,784
Factor Arrows
2187,392
Factor Arrows
293,696
Factor Arrows
246,848
Factor Arrows
223,424
Factor Arrows
211,712
Factor Arrows
25,856
Factor Arrows
22,928
Factor Arrows
21,464
Factor Arrows
2732
Factor Arrows
2366
Factor Arrows
2183
Factor Arrows
361

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, 61

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 2 x 2 x 2 x 2 x 2 x 3 x 61 = 749,568

This can also be written as 212 x 31 x 611 = 749,568

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


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