Q: What are the prime factors of the number 71,818,406?

 A: 2, 11, 37, 83, 1063

Why are those the prime factors of the number 71,818,406?

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 71,818,406

71,818,406
Factor Arrows
235,909,203
Factor Arrows
113,264,473
Factor Arrows
3788,229
Factor Arrows
831,063

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, 11, 37, 83, 1063

We can check our work by multiplying all of the prime factors together: 2 x 11 x 37 x 83 x 1,063 = 71,818,406

This can also be written as 21 x 111 x 371 x 831 x 1,0631 = 71,818,406

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


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