Q: What are the prime factors of the number 210,056?

 A: 2, 7, 11, 31

Why are those the prime factors of the number 210,056?

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 210,056

210,056
Factor Arrows
2105,028
Factor Arrows
252,514
Factor Arrows
226,257
Factor Arrows
73,751
Factor Arrows
11341
Factor Arrows
1131

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, 7, 11, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 11 x 31 = 210,056

This can also be written as 23 x 71 x 112 x 311 = 210,056

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


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