Q: What are the prime factors of the number 153,039,056?

 A: 2, 23, 197, 2111

Why are those the prime factors of the number 153,039,056?

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 153,039,056

153,039,056
Factor Arrows
276,519,528
Factor Arrows
238,259,764
Factor Arrows
219,129,882
Factor Arrows
29,564,941
Factor Arrows
23415,867
Factor Arrows
1972,111

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, 23, 197, 2111

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 197 x 2,111 = 153,039,056

This can also be written as 24 x 231 x 1971 x 2,1111 = 153,039,056

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


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