Q: What are the prime factors of the number 402,141,142?

 A: 2, 13, 83, 307, 607

Why are those the prime factors of the number 402,141,142?

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 402,141,142

402,141,142
Factor Arrows
2201,070,571
Factor Arrows
1315,466,967
Factor Arrows
83186,349
Factor Arrows
307607

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, 13, 83, 307, 607

We can check our work by multiplying all of the prime factors together: 2 x 13 x 83 x 307 x 607 = 402,141,142

This can also be written as 21 x 131 x 831 x 3071 x 6071 = 402,141,142

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


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