Q: What are the prime factors of the number 3,774,624?

 A: 2, 3, 7, 41, 137

Why are those the prime factors of the number 3,774,624?

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 3,774,624

3,774,624
Factor Arrows
21,887,312
Factor Arrows
2943,656
Factor Arrows
2471,828
Factor Arrows
2235,914
Factor Arrows
2117,957
Factor Arrows
339,319
Factor Arrows
75,617
Factor Arrows
41137

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, 41, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 41 x 137 = 3,774,624

This can also be written as 25 x 31 x 71 x 411 x 1371 = 3,774,624

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


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