Q: What are the prime factors of the number 1,858,192?

 A: 2, 7, 47, 353

Why are those the prime factors of the number 1,858,192?

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 1,858,192

1,858,192
Factor Arrows
2929,096
Factor Arrows
2464,548
Factor Arrows
2232,274
Factor Arrows
2116,137
Factor Arrows
716,591
Factor Arrows
47353

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, 7, 47, 353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 47 x 353 = 1,858,192

This can also be written as 24 x 71 x 471 x 3531 = 1,858,192

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


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