Q: What are the prime factors of the number 1,658,118?

 A: 2, 3, 7, 11, 37, 97

Why are those the prime factors of the number 1,658,118?

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 1,658,118

1,658,118
Factor Arrows
2829,059
Factor Arrows
3276,353
Factor Arrows
739,479
Factor Arrows
113,589
Factor Arrows
3797

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, 37, 97

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 11 x 37 x 97 = 1,658,118

This can also be written as 21 x 31 x 71 x 111 x 371 x 971 = 1,658,118

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


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