Q: What are the prime factors of the number 1,346,268?

 A: 2, 3, 7, 11, 31, 47

Why are those the prime factors of the number 1,346,268?

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 1,346,268

1,346,268
Factor Arrows
2673,134
Factor Arrows
2336,567
Factor Arrows
3112,189
Factor Arrows
716,027
Factor Arrows
111,457
Factor Arrows
3147

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, 11, 31, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 11 x 31 x 47 = 1,346,268

This can also be written as 22 x 31 x 71 x 111 x 311 x 471 = 1,346,268

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


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