Q: What are the prime factors of the number 39,155,430?

 A: 2, 3, 5, 23, 56747

Why are those the prime factors of the number 39,155,430?

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 39,155,430

39,155,430
Factor Arrows
219,577,715
Factor Arrows
36,525,905
Factor Arrows
51,305,181
Factor Arrows
2356,747

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, 23, 56747

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 23 x 56,747 = 39,155,430

This can also be written as 21 x 31 x 51 x 231 x 56,7471 = 39,155,430

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


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