Q: What are the prime factors of the number 1,865,984?

 A: 2, 37, 197

Why are those the prime factors of the number 1,865,984?

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 1,865,984

1,865,984
Factor Arrows
2932,992
Factor Arrows
2466,496
Factor Arrows
2233,248
Factor Arrows
2116,624
Factor Arrows
258,312
Factor Arrows
229,156
Factor Arrows
214,578
Factor Arrows
27,289
Factor Arrows
37197

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, 37, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 37 x 197 = 1,865,984

This can also be written as 28 x 371 x 1971 = 1,865,984

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


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