Q: What are the prime factors of the number 251,262,162?

 A: 2, 3, 1551001

Why are those the prime factors of the number 251,262,162?

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 251,262,162

251,262,162
Factor Arrows
2125,631,081
Factor Arrows
341,877,027
Factor Arrows
313,959,009
Factor Arrows
34,653,003
Factor Arrows
31,551,001

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, 1551001

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 1,551,001 = 251,262,162

This can also be written as 21 x 34 x 1,551,0011 = 251,262,162

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


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