Q: What are the prime factors of the number 7,842,954?

 A: 2, 3, 7, 23, 353

Why are those the prime factors of the number 7,842,954?

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 7,842,954

7,842,954
Factor Arrows
23,921,477
Factor Arrows
31,307,159
Factor Arrows
7186,737
Factor Arrows
238,119
Factor Arrows
23353

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, 23, 353

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 23 x 23 x 353 = 7,842,954

This can also be written as 21 x 31 x 71 x 232 x 3531 = 7,842,954

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


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