Q: What are the prime factors of the number 153,043,332?

 A: 2, 3, 13, 73, 89, 151

Why are those the prime factors of the number 153,043,332?

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 153,043,332

153,043,332
Factor Arrows
276,521,666
Factor Arrows
238,260,833
Factor Arrows
312,753,611
Factor Arrows
13981,047
Factor Arrows
7313,439
Factor Arrows
89151

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, 13, 73, 89, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 73 x 89 x 151 = 153,043,332

This can also be written as 22 x 31 x 131 x 731 x 891 x 1511 = 153,043,332

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


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