Q: What are the prime factors of the number 651,510?

 A: 2, 3, 5, 19, 127

Why are those the prime factors of the number 651,510?

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 651,510

651,510
Factor Arrows
2325,755
Factor Arrows
3108,585
Factor Arrows
336,195
Factor Arrows
312,065
Factor Arrows
52,413
Factor Arrows
19127

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, 3, 5, 19, 127

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 19 x 127 = 651,510

This can also be written as 21 x 33 x 51 x 191 x 1271 = 651,510

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


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