Q: What are the prime factors of the number 177,126,378?

 A: 2, 3, 11, 13, 59, 3499

Why are those the prime factors of the number 177,126,378?

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 177,126,378

177,126,378
Factor Arrows
288,563,189
Factor Arrows
329,521,063
Factor Arrows
112,683,733
Factor Arrows
13206,441
Factor Arrows
593,499

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, 13, 59, 3499

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 13 x 59 x 3,499 = 177,126,378

This can also be written as 21 x 31 x 111 x 131 x 591 x 3,4991 = 177,126,378

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


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