Q: What are the prime factors of the number 652,740?

 A: 2, 3, 5, 11, 23, 43

Why are those the prime factors of the number 652,740?

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 652,740

652,740
Factor Arrows
2326,370
Factor Arrows
2163,185
Factor Arrows
354,395
Factor Arrows
510,879
Factor Arrows
11989
Factor Arrows
2343

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, 11, 23, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 11 x 23 x 43 = 652,740

This can also be written as 22 x 31 x 51 x 111 x 231 x 431 = 652,740

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


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