Q: What are the prime factors of the number 148,873,504?

 A: 2, 13, 89, 4021

Why are those the prime factors of the number 148,873,504?

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 148,873,504

148,873,504
Factor Arrows
274,436,752
Factor Arrows
237,218,376
Factor Arrows
218,609,188
Factor Arrows
29,304,594
Factor Arrows
24,652,297
Factor Arrows
13357,869
Factor Arrows
894,021

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, 13, 89, 4021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 89 x 4,021 = 148,873,504

This can also be written as 25 x 131 x 891 x 4,0211 = 148,873,504

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


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