Q: What are the prime factors of the number 178,253,894?

 A: 2, 7, 13, 29, 33773

Why are those the prime factors of the number 178,253,894?

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 178,253,894

178,253,894
Factor Arrows
289,126,947
Factor Arrows
712,732,421
Factor Arrows
13979,417
Factor Arrows
2933,773

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, 7, 13, 29, 33773

We can check our work by multiplying all of the prime factors together: 2 x 7 x 13 x 29 x 33,773 = 178,253,894

This can also be written as 21 x 71 x 131 x 291 x 33,7731 = 178,253,894

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


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