Q: What are the prime factors of the number 191,877,126?

 A: 2, 3, 7, 193, 23671

Why are those the prime factors of the number 191,877,126?

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 191,877,126

191,877,126
Factor Arrows
295,938,563
Factor Arrows
331,979,521
Factor Arrows
74,568,503
Factor Arrows
19323,671

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, 7, 193, 23671

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 193 x 23,671 = 191,877,126

This can also be written as 21 x 31 x 71 x 1931 x 23,6711 = 191,877,126

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


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