Q: What are the prime factors of the number 71,450,848?

 A: 2, 7, 37, 233

Why are those the prime factors of the number 71,450,848?

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 71,450,848

71,450,848
Factor Arrows
235,725,424
Factor Arrows
217,862,712
Factor Arrows
28,931,356
Factor Arrows
24,465,678
Factor Arrows
22,232,839
Factor Arrows
7318,977
Factor Arrows
378,621
Factor Arrows
37233

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, 7, 37, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 37 x 37 x 233 = 71,450,848

This can also be written as 25 x 71 x 372 x 2331 = 71,450,848

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


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