Q: What are the prime factors of the number 143,448,890?

 A: 2, 5, 13, 17, 4993

Why are those the prime factors of the number 143,448,890?

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 143,448,890

143,448,890
Factor Arrows
271,724,445
Factor Arrows
514,344,889
Factor Arrows
131,103,453
Factor Arrows
1384,881
Factor Arrows
174,993

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, 5, 13, 17, 4993

We can check our work by multiplying all of the prime factors together: 2 x 5 x 13 x 13 x 17 x 4,993 = 143,448,890

This can also be written as 21 x 51 x 132 x 171 x 4,9931 = 143,448,890

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


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