Q: What are the prime factors of the number 145,521,088?

 A: 2, 17, 131, 1021

Why are those the prime factors of the number 145,521,088?

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 145,521,088

145,521,088
Factor Arrows
272,760,544
Factor Arrows
236,380,272
Factor Arrows
218,190,136
Factor Arrows
29,095,068
Factor Arrows
24,547,534
Factor Arrows
22,273,767
Factor Arrows
17133,751
Factor Arrows
1311,021

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, 17, 131, 1021

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 17 x 131 x 1,021 = 145,521,088

This can also be written as 26 x 171 x 1311 x 1,0211 = 145,521,088

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


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