Q: What are the prime factors of the number 73,918,490?

 A: 2, 5, 41, 180289

Why are those the prime factors of the number 73,918,490?

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 73,918,490

73,918,490
Factor Arrows
236,959,245
Factor Arrows
57,391,849
Factor Arrows
41180,289

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, 41, 180289

We can check our work by multiplying all of the prime factors together: 2 x 5 x 41 x 180,289 = 73,918,490

This can also be written as 21 x 51 x 411 x 180,2891 = 73,918,490

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


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