Q: What are the prime factors of the number 1,692,900?

 A: 2, 3, 5, 11, 19

Why are those the prime factors of the number 1,692,900?

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 1,692,900

1,692,900
Factor Arrows
2846,450
Factor Arrows
2423,225
Factor Arrows
3141,075
Factor Arrows
347,025
Factor Arrows
315,675
Factor Arrows
35,225
Factor Arrows
51,045
Factor Arrows
5209
Factor Arrows
1119

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, 5, 11, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 5 x 5 x 11 x 19 = 1,692,900

This can also be written as 22 x 34 x 52 x 111 x 191 = 1,692,900

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


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