Q: What are the prime factors of the number 141,312,138?

 A: 2, 3, 11, 23, 127, 733

Why are those the prime factors of the number 141,312,138?

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 141,312,138

141,312,138
Factor Arrows
270,656,069
Factor Arrows
323,552,023
Factor Arrows
112,141,093
Factor Arrows
2393,091
Factor Arrows
127733

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, 11, 23, 127, 733

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 23 x 127 x 733 = 141,312,138

This can also be written as 21 x 31 x 111 x 231 x 1271 x 7331 = 141,312,138

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


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