Q: What are the prime factors of the number 177,663,318?

 A: 2, 3, 7, 541, 1117

Why are those the prime factors of the number 177,663,318?

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 177,663,318

177,663,318
Factor Arrows
288,831,659
Factor Arrows
329,610,553
Factor Arrows
74,230,079
Factor Arrows
7604,297
Factor Arrows
5411,117

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, 541, 1117

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 541 x 1,117 = 177,663,318

This can also be written as 21 x 31 x 72 x 5411 x 1,1171 = 177,663,318

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


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