Q: What are the prime factors of the number 151,703,808?

 A: 2, 3, 53, 3727

Why are those the prime factors of the number 151,703,808?

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 151,703,808

151,703,808
Factor Arrows
275,851,904
Factor Arrows
237,925,952
Factor Arrows
218,962,976
Factor Arrows
29,481,488
Factor Arrows
24,740,744
Factor Arrows
22,370,372
Factor Arrows
21,185,186
Factor Arrows
2592,593
Factor Arrows
3197,531
Factor Arrows
533,727

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, 53, 3727

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 3 x 53 x 3,727 = 151,703,808

This can also be written as 28 x 31 x 531 x 3,7271 = 151,703,808

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


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