Q: What are the prime factors of the number 160,606,656?

 A: 2, 3, 7, 61, 653

Why are those the prime factors of the number 160,606,656?

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 160,606,656

160,606,656
Factor Arrows
280,303,328
Factor Arrows
240,151,664
Factor Arrows
220,075,832
Factor Arrows
210,037,916
Factor Arrows
25,018,958
Factor Arrows
22,509,479
Factor Arrows
3836,493
Factor Arrows
3278,831
Factor Arrows
739,833
Factor Arrows
61653

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, 61, 653

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 3 x 3 x 7 x 61 x 653 = 160,606,656

This can also be written as 26 x 32 x 71 x 611 x 6531 = 160,606,656

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


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