Q: What are the prime factors of the number 425,005,100?

 A: 2, 5, 13, 17, 19231

Why are those the prime factors of the number 425,005,100?

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 425,005,100

425,005,100
Factor Arrows
2212,502,550
Factor Arrows
2106,251,275
Factor Arrows
521,250,255
Factor Arrows
54,250,051
Factor Arrows
13326,927
Factor Arrows
1719,231

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, 13, 17, 19231

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 13 x 17 x 19,231 = 425,005,100

This can also be written as 22 x 52 x 131 x 171 x 19,2311 = 425,005,100

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


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