Q: What are the prime factors of the number 46,688,768?

 A: 2, 7, 1861

Why are those the prime factors of the number 46,688,768?

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 46,688,768

46,688,768
Factor Arrows
223,344,384
Factor Arrows
211,672,192
Factor Arrows
25,836,096
Factor Arrows
22,918,048
Factor Arrows
21,459,024
Factor Arrows
2729,512
Factor Arrows
2364,756
Factor Arrows
2182,378
Factor Arrows
291,189
Factor Arrows
713,027
Factor Arrows
71,861

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, 1861

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 2 x 2 x 7 x 7 x 1,861 = 46,688,768

This can also be written as 29 x 72 x 1,8611 = 46,688,768

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


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