Q: What are the prime factors of the number 75,476,880?

 A: 2, 3, 5, 83, 421

Why are those the prime factors of the number 75,476,880?

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 75,476,880

75,476,880
Factor Arrows
237,738,440
Factor Arrows
218,869,220
Factor Arrows
29,434,610
Factor Arrows
24,717,305
Factor Arrows
31,572,435
Factor Arrows
3524,145
Factor Arrows
3174,715
Factor Arrows
534,943
Factor Arrows
83421

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, 5, 83, 421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 83 x 421 = 75,476,880

This can also be written as 24 x 33 x 51 x 831 x 4211 = 75,476,880

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


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