Q: What are the prime factors of the number 874,128?

 A: 2, 3, 18211

Why are those the prime factors of the number 874,128?

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 874,128

874,128
Factor Arrows
2437,064
Factor Arrows
2218,532
Factor Arrows
2109,266
Factor Arrows
254,633
Factor Arrows
318,211

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, 18211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 18,211 = 874,128

This can also be written as 24 x 31 x 18,2111 = 874,128

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


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