Q: What are the prime factors of the number 101,831,424?

 A: 2, 3, 67, 1979

Why are those the prime factors of the number 101,831,424?

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 101,831,424

101,831,424
Factor Arrows
250,915,712
Factor Arrows
225,457,856
Factor Arrows
212,728,928
Factor Arrows
26,364,464
Factor Arrows
23,182,232
Factor Arrows
21,591,116
Factor Arrows
2795,558
Factor Arrows
2397,779
Factor Arrows
3132,593
Factor Arrows
671,979

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, 67, 1979

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 67 x 1,979 = 101,831,424

This can also be written as 28 x 31 x 671 x 1,9791 = 101,831,424

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


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