Q: What are the prime factors of the number 342,241,440?

 A: 2, 3, 5, 191, 3733

Why are those the prime factors of the number 342,241,440?

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 342,241,440

342,241,440
Factor Arrows
2171,120,720
Factor Arrows
285,560,360
Factor Arrows
242,780,180
Factor Arrows
221,390,090
Factor Arrows
210,695,045
Factor Arrows
33,565,015
Factor Arrows
5713,003
Factor Arrows
1913,733

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, 191, 3733

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 191 x 3,733 = 342,241,440

This can also be written as 25 x 31 x 51 x 1911 x 3,7331 = 342,241,440

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


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