Q: What are the prime factors of the number 146,192,580?

 A: 2, 3, 5, 97, 2791

Why are those the prime factors of the number 146,192,580?

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 146,192,580

146,192,580
Factor Arrows
273,096,290
Factor Arrows
236,548,145
Factor Arrows
312,182,715
Factor Arrows
34,060,905
Factor Arrows
31,353,635
Factor Arrows
5270,727
Factor Arrows
972,791

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, 97, 2791

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 97 x 2,791 = 146,192,580

This can also be written as 22 x 33 x 51 x 971 x 2,7911 = 146,192,580

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


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