Q: What are the prime factors of the number 65,470,356?

 A: 2, 3, 7, 28867

Why are those the prime factors of the number 65,470,356?

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 65,470,356

65,470,356
Factor Arrows
232,735,178
Factor Arrows
216,367,589
Factor Arrows
35,455,863
Factor Arrows
31,818,621
Factor Arrows
3606,207
Factor Arrows
3202,069
Factor Arrows
728,867

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, 7, 28867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 7 x 28,867 = 65,470,356

This can also be written as 22 x 34 x 71 x 28,8671 = 65,470,356

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


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