Q: What are the prime factors of the number 696,128?

 A: 2, 73, 149

Why are those the prime factors of the number 696,128?

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 696,128

696,128
Factor Arrows
2348,064
Factor Arrows
2174,032
Factor Arrows
287,016
Factor Arrows
243,508
Factor Arrows
221,754
Factor Arrows
210,877
Factor Arrows
73149

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, 73, 149

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 73 x 149 = 696,128

This can also be written as 26 x 731 x 1491 = 696,128

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


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