Q: What are the prime factors of the number 154,263,144?

 A: 2, 3, 7, 61, 15053

Why are those the prime factors of the number 154,263,144?

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 154,263,144

154,263,144
Factor Arrows
277,131,572
Factor Arrows
238,565,786
Factor Arrows
219,282,893
Factor Arrows
36,427,631
Factor Arrows
7918,233
Factor Arrows
6115,053

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, 61, 15053

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 61 x 15,053 = 154,263,144

This can also be written as 23 x 31 x 71 x 611 x 15,0531 = 154,263,144

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


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