Q: What are the prime factors of the number 142,047,210?

 A: 2, 3, 5, 151, 31357

Why are those the prime factors of the number 142,047,210?

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 142,047,210

142,047,210
Factor Arrows
271,023,605
Factor Arrows
323,674,535
Factor Arrows
54,734,907
Factor Arrows
15131,357

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, 5, 151, 31357

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 151 x 31,357 = 142,047,210

This can also be written as 21 x 31 x 51 x 1511 x 31,3571 = 142,047,210

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


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