Q: What are the prime factors of the number 7,620,444?

 A: 2, 3, 13, 19, 857

Why are those the prime factors of the number 7,620,444?

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 7,620,444

7,620,444
Factor Arrows
23,810,222
Factor Arrows
21,905,111
Factor Arrows
3635,037
Factor Arrows
3211,679
Factor Arrows
1316,283
Factor Arrows
19857

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, 13, 19, 857

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 19 x 857 = 7,620,444

This can also be written as 22 x 32 x 131 x 191 x 8571 = 7,620,444

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


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