Q: What are the prime factors of the number 650,460,465?

 A: 3, 5, 71, 163, 1249

Why are those the prime factors of the number 650,460,465?

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 650,460,465

650,460,465
Factor Arrows
3216,820,155
Factor Arrows
372,273,385
Factor Arrows
514,454,677
Factor Arrows
71203,587
Factor Arrows
1631,249

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, 5, 71, 163, 1249

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 71 x 163 x 1,249 = 650,460,465

This can also be written as 32 x 51 x 711 x 1631 x 1,2491 = 650,460,465

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


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