Q: What are the prime factors of the number 146,073,120?

 A: 2, 3, 5, 347, 877

Why are those the prime factors of the number 146,073,120?

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 146,073,120

146,073,120
Factor Arrows
273,036,560
Factor Arrows
236,518,280
Factor Arrows
218,259,140
Factor Arrows
29,129,570
Factor Arrows
24,564,785
Factor Arrows
31,521,595
Factor Arrows
5304,319
Factor Arrows
347877

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, 347, 877

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 347 x 877 = 146,073,120

This can also be written as 25 x 31 x 51 x 3471 x 8771 = 146,073,120

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


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