Q: What are the prime factors of the number 3,542,736?

 A: 2, 3, 23, 3209

Why are those the prime factors of the number 3,542,736?

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 3,542,736

3,542,736
Factor Arrows
21,771,368
Factor Arrows
2885,684
Factor Arrows
2442,842
Factor Arrows
2221,421
Factor Arrows
373,807
Factor Arrows
233,209

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, 23, 3209

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 23 x 3,209 = 3,542,736

This can also be written as 24 x 31 x 231 x 3,2091 = 3,542,736

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


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