Q: What are the prime factors of the number 151,644,240?

 A: 2, 3, 5, 11, 41, 467

Why are those the prime factors of the number 151,644,240?

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 151,644,240

151,644,240
Factor Arrows
275,822,120
Factor Arrows
237,911,060
Factor Arrows
218,955,530
Factor Arrows
29,477,765
Factor Arrows
33,159,255
Factor Arrows
31,053,085
Factor Arrows
5210,617
Factor Arrows
1119,147
Factor Arrows
41467

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, 11, 41, 467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 11 x 41 x 467 = 151,644,240

This can also be written as 24 x 32 x 51 x 111 x 411 x 4671 = 151,644,240

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


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