Q: What are the prime factors of the number 129,962,944?

 A: 2, 37, 71, 773

Why are those the prime factors of the number 129,962,944?

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 129,962,944

129,962,944
Factor Arrows
264,981,472
Factor Arrows
232,490,736
Factor Arrows
216,245,368
Factor Arrows
28,122,684
Factor Arrows
24,061,342
Factor Arrows
22,030,671
Factor Arrows
3754,883
Factor Arrows
71773

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, 37, 71, 773

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 37 x 71 x 773 = 129,962,944

This can also be written as 26 x 371 x 711 x 7731 = 129,962,944

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


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