Q: What are the prime factors of the number 987,543,254?

 A: 2, 31, 661, 24097

Why are those the prime factors of the number 987,543,254?

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 987,543,254

987,543,254
Factor Arrows
2493,771,627
Factor Arrows
3115,928,117
Factor Arrows
66124,097

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, 31, 661, 24097

We can check our work by multiplying all of the prime factors together: 2 x 31 x 661 x 24,097 = 987,543,254

This can also be written as 21 x 311 x 6611 x 24,0971 = 987,543,254

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


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