Q: What are the prime factors of the number 39,194,280?

 A: 2, 3, 5, 12097

Why are those the prime factors of the number 39,194,280?

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 39,194,280

39,194,280
Factor Arrows
219,597,140
Factor Arrows
29,798,570
Factor Arrows
24,899,285
Factor Arrows
31,633,095
Factor Arrows
3544,365
Factor Arrows
3181,455
Factor Arrows
360,485
Factor Arrows
512,097

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, 12097

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 12,097 = 39,194,280

This can also be written as 23 x 34 x 51 x 12,0971 = 39,194,280

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


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