Q: What are the prime factors of the number 742,896?

 A: 2, 3, 7, 11, 67

Why are those the prime factors of the number 742,896?

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 742,896

742,896
Factor Arrows
2371,448
Factor Arrows
2185,724
Factor Arrows
292,862
Factor Arrows
246,431
Factor Arrows
315,477
Factor Arrows
35,159
Factor Arrows
7737
Factor Arrows
1167

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, 7, 11, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 11 x 67 = 742,896

This can also be written as 24 x 32 x 71 x 111 x 671 = 742,896

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


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