Q: What are the prime factors of the number 1,171,504?

 A: 2, 17, 59, 73

Why are those the prime factors of the number 1,171,504?

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 1,171,504

1,171,504
Factor Arrows
2585,752
Factor Arrows
2292,876
Factor Arrows
2146,438
Factor Arrows
273,219
Factor Arrows
174,307
Factor Arrows
5973

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, 17, 59, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 59 x 73 = 1,171,504

This can also be written as 24 x 171 x 591 x 731 = 1,171,504

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


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