Q: What are the prime factors of the number 103,623,624?

 A: 2, 3, 13, 12301

Why are those the prime factors of the number 103,623,624?

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 103,623,624

103,623,624
Factor Arrows
251,811,812
Factor Arrows
225,905,906
Factor Arrows
212,952,953
Factor Arrows
34,317,651
Factor Arrows
31,439,217
Factor Arrows
3479,739
Factor Arrows
3159,913
Factor Arrows
1312,301

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, 12301

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 13 x 12,301 = 103,623,624

This can also be written as 23 x 34 x 131 x 12,3011 = 103,623,624

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


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