Q: What are the prime factors of the number 781,952?

 A: 2, 41, 149

Why are those the prime factors of the number 781,952?

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 781,952

781,952
Factor Arrows
2390,976
Factor Arrows
2195,488
Factor Arrows
297,744
Factor Arrows
248,872
Factor Arrows
224,436
Factor Arrows
212,218
Factor Arrows
26,109
Factor Arrows
41149

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, 41, 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 2 x 41 x 149 = 781,952

This can also be written as 27 x 411 x 1491 = 781,952

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


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