Q: What are the prime factors of the number 3,625,776?

 A: 2, 3, 7, 11, 109

Why are those the prime factors of the number 3,625,776?

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 3,625,776

3,625,776
Factor Arrows
21,812,888
Factor Arrows
2906,444
Factor Arrows
2453,222
Factor Arrows
2226,611
Factor Arrows
375,537
Factor Arrows
325,179
Factor Arrows
38,393
Factor Arrows
71,199
Factor Arrows
11109

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, 11, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 11 x 109 = 3,625,776

This can also be written as 24 x 33 x 71 x 111 x 1091 = 3,625,776

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


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