Q: What are the prime factors of the number 250,543,440?

 A: 2, 3, 5, 7, 49711

Why are those the prime factors of the number 250,543,440?

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 250,543,440

250,543,440
Factor Arrows
2125,271,720
Factor Arrows
262,635,860
Factor Arrows
231,317,930
Factor Arrows
215,658,965
Factor Arrows
35,219,655
Factor Arrows
31,739,885
Factor Arrows
5347,977
Factor Arrows
749,711

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, 5, 7, 49711

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 x 49,711 = 250,543,440

This can also be written as 24 x 32 x 51 x 71 x 49,7111 = 250,543,440

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


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