Q: What are the prime factors of the number 84,128,964?

 A: 2, 3, 107, 65521

Why are those the prime factors of the number 84,128,964?

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 84,128,964

84,128,964
Factor Arrows
242,064,482
Factor Arrows
221,032,241
Factor Arrows
37,010,747
Factor Arrows
10765,521

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, 107, 65521

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 107 x 65,521 = 84,128,964

This can also be written as 22 x 31 x 1071 x 65,5211 = 84,128,964

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


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