Q: What are the prime factors of the number 82,641,450?

 A: 2, 3, 5, 19, 107, 271

Why are those the prime factors of the number 82,641,450?

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 82,641,450

82,641,450
Factor Arrows
241,320,725
Factor Arrows
313,773,575
Factor Arrows
52,754,715
Factor Arrows
5550,943
Factor Arrows
1928,997
Factor Arrows
107271

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, 19, 107, 271

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 19 x 107 x 271 = 82,641,450

This can also be written as 21 x 31 x 52 x 191 x 1071 x 2711 = 82,641,450

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


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