Q: What are the prime factors of the number 457,641,162?

 A: 2, 3, 11, 47, 49177

Why are those the prime factors of the number 457,641,162?

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 457,641,162

457,641,162
Factor Arrows
2228,820,581
Factor Arrows
376,273,527
Factor Arrows
325,424,509
Factor Arrows
112,311,319
Factor Arrows
4749,177

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, 11, 47, 49177

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 47 x 49,177 = 457,641,162

This can also be written as 21 x 32 x 111 x 471 x 49,1771 = 457,641,162

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


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