Q: What are the prime factors of the number 65,490,417?

 A: 3, 73, 149, 223

Why are those the prime factors of the number 65,490,417?

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 65,490,417

65,490,417
Factor Arrows
321,830,139
Factor Arrows
37,276,713
Factor Arrows
32,425,571
Factor Arrows
7333,227
Factor Arrows
149223

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, 73, 149, 223

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 73 x 149 x 223 = 65,490,417

This can also be written as 33 x 731 x 1491 x 2231 = 65,490,417

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


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