Q: What are the prime factors of the number 74,654,190?

 A: 2, 3, 5, 13, 21269

Why are those the prime factors of the number 74,654,190?

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 74,654,190

74,654,190
Factor Arrows
237,327,095
Factor Arrows
312,442,365
Factor Arrows
34,147,455
Factor Arrows
31,382,485
Factor Arrows
5276,497
Factor Arrows
1321,269

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, 13, 21269

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 13 x 21,269 = 74,654,190

This can also be written as 21 x 33 x 51 x 131 x 21,2691 = 74,654,190

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


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