Q: What are the prime factors of the number 1,401,885?

 A: 3, 5, 31153

Why are those the prime factors of the number 1,401,885?

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 1,401,885

1,401,885
Factor Arrows
3467,295
Factor Arrows
3155,765
Factor Arrows
531,153

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:

3, 5, 31153

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 31,153 = 1,401,885

This can also be written as 32 x 51 x 31,1531 = 1,401,885

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


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