Q: What are the prime factors of the number 73,421,696?

 A: 2, 103, 5569

Why are those the prime factors of the number 73,421,696?

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 73,421,696

73,421,696
Factor Arrows
236,710,848
Factor Arrows
218,355,424
Factor Arrows
29,177,712
Factor Arrows
24,588,856
Factor Arrows
22,294,428
Factor Arrows
21,147,214
Factor Arrows
2573,607
Factor Arrows
1035,569

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, 103, 5569

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 103 x 5,569 = 73,421,696

This can also be written as 27 x 1031 x 5,5691 = 73,421,696

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


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