Q: What are the prime factors of the number 253,440,343?

 A: 13, 37, 40531

Why are those the prime factors of the number 253,440,343?

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 253,440,343

253,440,343
Factor Arrows
1319,495,411
Factor Arrows
131,499,647
Factor Arrows
3740,531

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:

13, 37, 40531

We can check our work by multiplying all of the prime factors together: 13 x 13 x 37 x 40,531 = 253,440,343

This can also be written as 132 x 371 x 40,5311 = 253,440,343

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


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