Q: What are the prime factors of the number 198,933,868?

 A: 2, 7, 89, 79829

Why are those the prime factors of the number 198,933,868?

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 198,933,868

198,933,868
Factor Arrows
299,466,934
Factor Arrows
249,733,467
Factor Arrows
77,104,781
Factor Arrows
8979,829

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, 89, 79829

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 89 x 79,829 = 198,933,868

This can also be written as 22 x 71 x 891 x 79,8291 = 198,933,868

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


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