Q: What are the prime factors of the number 178,076,500?

 A: 2, 5, 7, 83, 613

Why are those the prime factors of the number 178,076,500?

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 178,076,500

178,076,500
Factor Arrows
289,038,250
Factor Arrows
244,519,125
Factor Arrows
58,903,825
Factor Arrows
51,780,765
Factor Arrows
5356,153
Factor Arrows
750,879
Factor Arrows
83613

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, 7, 83, 613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 7 x 83 x 613 = 178,076,500

This can also be written as 22 x 53 x 71 x 831 x 6131 = 178,076,500

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


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