Q: What are the prime factors of the number 945,504?

 A: 2, 3, 7, 67

Why are those the prime factors of the number 945,504?

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 945,504

945,504
Factor Arrows
2472,752
Factor Arrows
2236,376
Factor Arrows
2118,188
Factor Arrows
259,094
Factor Arrows
229,547
Factor Arrows
39,849
Factor Arrows
33,283
Factor Arrows
7469
Factor Arrows
767

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, 7, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 7 x 67 = 945,504

This can also be written as 25 x 32 x 72 x 671 = 945,504

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


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