Q: What are the prime factors of the number 170,100,416?

 A: 2, 139, 19121

Why are those the prime factors of the number 170,100,416?

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 170,100,416

170,100,416
Factor Arrows
285,050,208
Factor Arrows
242,525,104
Factor Arrows
221,262,552
Factor Arrows
210,631,276
Factor Arrows
25,315,638
Factor Arrows
22,657,819
Factor Arrows
13919,121

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, 139, 19121

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 139 x 19,121 = 170,100,416

This can also be written as 26 x 1391 x 19,1211 = 170,100,416

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


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