Q: What are the prime factors of the number 145,520,004?

 A: 2, 3, 7, 263, 941

Why are those the prime factors of the number 145,520,004?

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 145,520,004

145,520,004
Factor Arrows
272,760,002
Factor Arrows
236,380,001
Factor Arrows
312,126,667
Factor Arrows
71,732,381
Factor Arrows
7247,483
Factor Arrows
263941

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, 7, 263, 941

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 263 x 941 = 145,520,004

This can also be written as 22 x 31 x 72 x 2631 x 9411 = 145,520,004

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


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