Q: What are the prime factors of the number 142,310,994?

 A: 2, 3, 7, 43, 11257

Why are those the prime factors of the number 142,310,994?

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 142,310,994

142,310,994
Factor Arrows
271,155,497
Factor Arrows
323,718,499
Factor Arrows
73,388,357
Factor Arrows
7484,051
Factor Arrows
4311,257

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, 43, 11257

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 43 x 11,257 = 142,310,994

This can also be written as 21 x 31 x 72 x 431 x 11,2571 = 142,310,994

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


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