Q: What are the prime factors of the number 39,710,450?

 A: 2, 5, 13, 199, 307

Why are those the prime factors of the number 39,710,450?

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 39,710,450

39,710,450
Factor Arrows
219,855,225
Factor Arrows
53,971,045
Factor Arrows
5794,209
Factor Arrows
1361,093
Factor Arrows
199307

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, 5, 13, 199, 307

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 13 x 199 x 307 = 39,710,450

This can also be written as 21 x 52 x 131 x 1991 x 3071 = 39,710,450

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


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