Q: What are the prime factors of the number 42,133,434?

 A: 2, 3, 7, 59, 347

Why are those the prime factors of the number 42,133,434?

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 42,133,434

42,133,434
Factor Arrows
221,066,717
Factor Arrows
37,022,239
Factor Arrows
71,003,177
Factor Arrows
7143,311
Factor Arrows
720,473
Factor Arrows
59347

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, 59, 347

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 7 x 59 x 347 = 42,133,434

This can also be written as 21 x 31 x 73 x 591 x 3471 = 42,133,434

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


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