Q: What are the prime factors of the number 140,321,262?

 A: 2, 3, 157, 148961

Why are those the prime factors of the number 140,321,262?

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 140,321,262

140,321,262
Factor Arrows
270,160,631
Factor Arrows
323,386,877
Factor Arrows
157148,961

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, 157, 148961

We can check our work by multiplying all of the prime factors together: 2 x 3 x 157 x 148,961 = 140,321,262

This can also be written as 21 x 31 x 1571 x 148,9611 = 140,321,262

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


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