Q: What are the prime factors of the number 142,154,012?

 A: 2, 7, 11, 13, 2731

Why are those the prime factors of the number 142,154,012?

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 142,154,012

142,154,012
Factor Arrows
271,077,006
Factor Arrows
235,538,503
Factor Arrows
75,076,929
Factor Arrows
11461,539
Factor Arrows
1335,503
Factor Arrows
132,731

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, 7, 11, 13, 2731

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 11 x 13 x 13 x 2,731 = 142,154,012

This can also be written as 22 x 71 x 111 x 132 x 2,7311 = 142,154,012

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


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