Q: What are the prime factors of the number 160,262,560?

 A: 2, 5, 31, 79, 409

Why are those the prime factors of the number 160,262,560?

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 160,262,560

160,262,560
Factor Arrows
280,131,280
Factor Arrows
240,065,640
Factor Arrows
220,032,820
Factor Arrows
210,016,410
Factor Arrows
25,008,205
Factor Arrows
51,001,641
Factor Arrows
3132,311
Factor Arrows
79409

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, 5, 31, 79, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 31 x 79 x 409 = 160,262,560

This can also be written as 25 x 51 x 311 x 791 x 4091 = 160,262,560

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


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