Q: What are the prime factors of the number 153,455,324?

 A: 2, 11, 19, 9661

Why are those the prime factors of the number 153,455,324?

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 153,455,324

153,455,324
Factor Arrows
276,727,662
Factor Arrows
238,363,831
Factor Arrows
113,487,621
Factor Arrows
19183,559
Factor Arrows
199,661

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, 11, 19, 9661

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 19 x 19 x 9,661 = 153,455,324

This can also be written as 22 x 111 x 192 x 9,6611 = 153,455,324

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


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