Q: What are the prime factors of the number 251,346,352?

 A: 2, 43, 53, 61, 113

Why are those the prime factors of the number 251,346,352?

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 251,346,352

251,346,352
Factor Arrows
2125,673,176
Factor Arrows
262,836,588
Factor Arrows
231,418,294
Factor Arrows
215,709,147
Factor Arrows
43365,329
Factor Arrows
536,893
Factor Arrows
61113

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, 43, 53, 61, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 43 x 53 x 61 x 113 = 251,346,352

This can also be written as 24 x 431 x 531 x 611 x 1131 = 251,346,352

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


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