Q: What are the prime factors of the number 100,420,564?

 A: 2, 17, 86869

Why are those the prime factors of the number 100,420,564?

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 100,420,564

100,420,564
Factor Arrows
250,210,282
Factor Arrows
225,105,141
Factor Arrows
171,476,773
Factor Arrows
1786,869

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, 17, 86869

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 17 x 86,869 = 100,420,564

This can also be written as 22 x 172 x 86,8691 = 100,420,564

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


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