Q: What are the prime factors of the number 835,303,280?

 A: 2, 5, 7, 163, 9151

Why are those the prime factors of the number 835,303,280?

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 835,303,280

835,303,280
Factor Arrows
2417,651,640
Factor Arrows
2208,825,820
Factor Arrows
2104,412,910
Factor Arrows
252,206,455
Factor Arrows
510,441,291
Factor Arrows
71,491,613
Factor Arrows
1639,151

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, 7, 163, 9151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 163 x 9,151 = 835,303,280

This can also be written as 24 x 51 x 71 x 1631 x 9,1511 = 835,303,280

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


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