Q: What are the prime factors of the number 140,250,297?

 A: 3, 11, 23, 257, 719

Why are those the prime factors of the number 140,250,297?

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 140,250,297

140,250,297
Factor Arrows
346,750,099
Factor Arrows
114,250,009
Factor Arrows
23184,783
Factor Arrows
257719

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:

3, 11, 23, 257, 719

We can check our work by multiplying all of the prime factors together: 3 x 11 x 23 x 257 x 719 = 140,250,297

This can also be written as 31 x 111 x 231 x 2571 x 7191 = 140,250,297

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


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